Skip to main content

I70.248 ICD-10-CM Code: Atherosclerosis of native arteries of left leg with ulceration of other part of lower leg

Compare with another codeCheck this code on a claim

Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.

Coding at a Glance

Tabular directives
13 inclusion terms · 9 Excludes2 · 8 use-additional codes
Risk adjustment
CMS-HCC V28: 2 categories · CMS-HCC V22 category 106 · CMS-HCC V22 category 161 · RxHCC V08 category 311

Billable · FY2027A valid, specific ICD-10-CM code, reportable for dates of service in FY2027.

What you need to know

Source: CMS/NCHS Official ICD-10-CM tabular notes, quoted. From the CMS/NCHS tabular list for the release in force. A note the category or block publishes applies to this code too; the Instructions section marks which is which.

Use additional codeReport with this code when documented
  • code to identify severity of ulcer (L97.-)
  • code, if applicable, to identify chronic total occlusion of artery of extremity (I70.92)
  • code to identify:
  • exposure to environmental tobacco smoke (Z77.22)

+4 more in Instructions

Excludes2Not included here; may be reported together
  • atherosclerosis of bypass graft of extremities (I70.30-I70.79)
  • arteriosclerotic cardiovascular disease (I25.1-)
  • arteriosclerotic heart disease (I25.1-)
  • atheroembolism (I75.-)

+5 more in Instructions

IncludesWhat this code covers
  • any condition classifiable to I70.212 and I70.222
  • chronic limb-threatening ischemia of native arteries of left leg with ulceration
  • critical limb ischemia of native arteries of left leg with ulceration
  • arteriolosclerosis

+9 more in Instructions

Most relevant related codes MedCoder-derived

Read off the official notes above and this code’s own position in the tabular list. Which to report is a documentation question; Compare shows the two side by side.

CompareCheck ClaimView Related Codes

Inpatient Payment Groups (MS-DRG)

Potential MS-DRG participation — not a DRG assignment.

MS-DRGs this diagnosis helps define, as principal or secondary, per the CMS ICD-10-CM/PCS MS-DRG Definitions Manual v44, Appendix B.

  • MS-DRG 299 — PERIPHERAL VASCULAR DISORDERS WITH MCC (MDC 05)
  • MS-DRG 300 — PERIPHERAL VASCULAR DISORDERS WITH CC (MDC 05)
  • MS-DRG 301 — PERIPHERAL VASCULAR DISORDERS WITHOUT CC/MCC (MDC 05)

A diagnosis appearing in a group's logic does not by itself determine the DRG assigned to a stay; the grouper uses the full claim.

Risk Adjustment (CMS-HCC)

Payment categories this diagnosis maps to under CMS-HCC V28, payment year 2026.

  • HCC 263 — Atherosclerosis of Arteries of the Extremities with Ulceration or Gangrene (supersedes HCC 264, HCC 383, HCC 409)
  • HCC 383 — Chronic Ulcer of Skin, Except Pressure, Not Specified as Through to Bone or Muscle

Other models: CMS-HCC V22 HCC 106 · CMS-HCC V22 HCC 161 · RxHCC V08 HCC 311

Risk scores depend on the enrollee's full accepted diagnosis set and segment; a category mapping alone does not determine payment.

Coding instructions

Official Tabular Instructional Notes: the inclusion, exclusion and sequencing notes published for I70.248 in the official ICD-10-CM tabular list, quoted as published.

Source: CMS/CDC — ICD-10-CM Tabular ListRelease: FY2027Effective: October 1, 2026

Trace:FY2027 changesChange historyRelease, file and checksum

Notes without a marker are published on I70.248 itself; “inherited from” names the category or block whose note applies here.

Includes

Conditions the official ICD-10-CM tabular list includes under this code.

  • any condition classifiable to I70.212 and I70.222inherited from I70.24
  • chronic limb-threatening ischemia of native arteries of left leg with ulceration inherited from I70.24
  • critical limb ischemia of native arteries of left leg with ulceration inherited from I70.24
  • arteriolosclerosis inherited from I70
  • arterial degeneration inherited from I70
  • arteriosclerosis inherited from I70
  • arteriosclerotic vascular disease inherited from I70
  • arteriovascular degeneration inherited from I70
  • atheroma inherited from I70
  • endarteritis deformans or obliterans inherited from I70
  • senile arteritis inherited from I70
  • senile endarteritis inherited from I70
  • vascular degeneration inherited from I70

Excludes2 — Not Included Here

Conditions not covered by this code, but which may be reported alongside it when both are present.

Use Additional Code

Supplementary codes the tabular list directs you to add.

  • Use additional code to identify severity of ulcer (L97.-) inherited from I70.24
  • Use additional code, if applicable, to identify chronic total occlusion of artery of extremity (I70.92) inherited from I70.2
  • Use additional code to identify:
  • exposure to environmental tobacco smoke (Z77.22) inherited from I70
  • history of tobacco dependence (Z87.891) inherited from I70
  • occupational exposure to environmental tobacco smoke (Z57.31) inherited from I70
  • tobacco dependence (F17.-) inherited from I70
  • tobacco use (Z72.0) inherited from I70

Coder workflow for I70.248

MedCoder structured workflow — derived from this code’s own official record

Before you code I70.248

  1. Laterality is coded in this family. Confirm the side documented — right, left, or bilateral — and select the matching code (this page’s code: left). The unspecified-side code applies only when the record states no side. Laterality is assigned from the documented side; where a bilateral code exists and both sides are documented, it is used instead of two unilateral codes (Guidelines I.B.13).

    See the relationships section · Guide: Laterality coding →

  2. I70.248’s title joins a condition with an associated condition or complication. Confirm each component is documented. Where the classification presumes the link through the “with” convention, only a provider statement that the conditions are unrelated defeats it. A combination code is assigned only when it fully identifies the documented conditions; a required second code for the stage, type or manifestation is still reported when the notes ask for it (Guidelines I.B.9, I.A.15).

    Guide: Combination codes →

Choose the right path

  1. Is the side documented?
    Yes → Select the code for the documented side (or the bilateral code when both sides are documented and one exists).
    No → Use the unspecified-side code only when the record states no side; a query is the alternative.

Consider I70.248. Then work the Use Additional Code note, and confirm the code is valid for the date of service in the Verify section.

Documentation check

The provider’s diagnostic statement
Codes are assigned from the provider’s documented diagnosis, not from clinical criteria, test values or a medication list (Guidelines I.A.19).
Anatomical site
At the most specific level the record states; a site the classification separates cannot be assumed from a procedure or a measurement.
Laterality
Right, left or bilateral as documented; unspecified only when the record states no side (Guidelines I.B.13).
The associated condition or complication
Whether the associated condition the title names is documented; the “with” convention presumes some links, and a provider statement that the conditions are unrelated defeats it (Guidelines I.A.15).
The conditions the Use Additional Code note names
Reported with this code when documented; a conditional instruction (“if applicable”, “if known”) applies only when the record supports it.

Official instructions as workflow

  • Excludes2 — not part of I70.248(9 notes)

    Coding workflow: The conditions named in this note are not included in I70.248. When the record documents both, both may be reported; the note is a boundary, not a prohibition.

    CompareI25.1, I75, I67.2, K55.1, I27.0

    See the official tabular notes · Guidelines I.A.12.b

  • Use Additional Code — after identifying I70.248(8 notes)

    Coding workflow: Check whether the documentation supports the additional code(s) the note names, and report them with I70.248 when it does. Where the instruction is conditional (“if applicable”, “if known”), it applies only when the record documents the condition.

    ReviewL97, I70.92, Z77.22, Z87.891, Z57.31, F17

    See the official tabular notes · Guidelines I.A.13

Coding decision scenarios

Pattern scenarios for this code’s structure — decision rules, not clinical cases

Documentation: The record documents the condition on one side only.

Coding question: Which code in this family applies?

Path: Select the sibling code for the documented side.

Reason: Laterality is assigned from the documented side; the unspecified-side code is for records that state no side (Guidelines I.B.13).

Documentation: Only one of the components this code’s title joins is documented.

Coding question: Is I70.248 supported?

Path: Review the code for the documented component on its own.

Reason: A combination code is assigned only when it fully identifies the documented conditions; otherwise the documented component takes its own code (Guidelines I.B.9).

Documentation: A condition the Use Additional Code note names is documented.

Coding question: Is a second code reported with I70.248?

Path: Review the Use Additional Code note and the code it names.

Reason: The additional code is reported when the record documents the condition; a conditional instruction applies only when its condition is met (Guidelines I.A.13).

ReviewL97, I70.92, Z77.22, Z87.891, Z57.31, F17

Every row is derived from this code’s own record — its title, tabular notes, 7th-character family and same-category siblings — with fixed MedCoder wording; nothing is inferred about a patient. The official notes and guideline text are in the sections each row links to, and they control.

Don’t confuse I70.248 with…

MedCoder analysis — pairs from this code’s official notes, distinctions written by MedCoder

The codes most likely to be picked instead of I70.248 — named in its own official notes, or sharing its laterality or encounter family — with what separates them and which documentation moves the case. Each links to the full comparison.

  • I70.249— Specificity relationship (Review)

    Overlapping diagnoses in the same category.

    Overlapping codes in the same category — the documentation decides which is the more specific fit.

    What moves you there: A record that documents no more than “Atherosclerosis of native arteries of left leg with ulceration of unspecified site” takes I70.249; specificity in the record moves it back here.

    Full comparison: I70.248 vs I70.249 →

  • I70.238— Laterality relationship (Review)

    Same condition; these differ only in which side is documented.

    The same condition on the other side; the documented side decides, and a bilateral code, where one exists, replaces the pair when both sides are documented.

    What moves you there: A documented right side moves the case to I70.238.

    Full comparison: I70.248 vs I70.238 →

  • I70.30— Excludes2 relationship (Informational)

    Distinct conditions — both may be reported.

    A distinct condition — both may be reported when both are documented.

    What moves you there: Documentation of atherosclerosis of bypass graft of extremities adds I70.30; it is not part of this code and both may be reported when both are documented.

    Full comparison: I70.248 vs I70.30 →

  • I70.79— Excludes2 relationship (Informational)

    Distinct conditions — both may be reported.

    A distinct condition — both may be reported when both are documented.

    What moves you there: Documentation of atherosclerosis of bypass graft of extremities adds I70.79; it is not part of this code and both may be reported when both are documented.

    Full comparison: I70.248 vs I70.79 →

  • I25.1— Excludes2 relationship (Informational)

    Distinct conditions — both may be reported.

    A distinct condition — both may be reported when both are documented.

    What moves you there: Documentation of arteriosclerotic cardiovascular disease adds I25.1; it is not part of this code and both may be reported when both are documented.

    Full comparison: I70.248 vs I25.1 →

  • I75— Excludes2 relationship (Informational)

    Distinct conditions — both may be reported.

    A distinct condition — both may be reported when both are documented.

    What moves you there: Documentation of atheroembolism adds I75; it is not part of this code and both may be reported when both are documented.

    Full comparison: I70.248 vs I75 →

Relationships are read from this code's own official notes, its laterality siblings and its encounter family; the wording of each distinction is MedCoder editorial, and the documentation named in each “what moves you there” line is the official note phrase or sibling title itself. Source: CMS ICD-10-CM tabular instructional notes; ICD-10-CM Official Guidelines, Section I.A.12.a.

Coding context

Guidelines, coding notes, decision aids, relationships (with MS-DRG and CCSR classification), hierarchy, HCC, coverage and the context map: what a coder reaches for after the core. Each section names whether it is official source data, a MedCoder-derived relationship or MedCoder editorial.

Code Overview

Atherosclerosis of native arteries of left leg with ulceration of other part of lower leg is a billable ICD-10-CM diagnosis code (I70.248).

MedCoder summary Summary composed by MedCoder from this code's official ICD-10-CM record. The tabular instructional notes themselves appear verbatim below.

Decision Points

The directives on this code's own record, as a pre-claim checklist.

  1. Laterality is coded in this family. Confirm the documented side matches the code — the opposite-side siblings are in the relationships section. See the opposite-side sibling codes
  2. 8 Use Additional Code instructions — report the named additional code(s) when the documentation supports them. See the Use Additional Code notes
  3. 9 Excludes2 entries — those conditions are not part of this code and may be reported additionally when documented. See the Excludes2 notes

Checklist rows are derived from this code's own official directives; the wording of each check is MedCoder editorial. The official notes themselves are in the sections each row links to.

Verify Before Coding

  • Age-restricted: the Medicare Code Editor lists this as an adult (age 15-124) diagnosis; other ages are presumed incorrect.

From the code registry, the Medicare Code Editor, and the MS-DRG Definitions Manual. Check it against a full claim in Claim Check.

Relationships & Classification

MedCoder-derived relationships — computed from published CMS and AHRQ datasets

Other codes that name I70.248 or its code family, from the CMS ICD-10-CM tabular instructional notes. Tabular-note edges are stored at the code family level that carries each note.

Referenced by 2 Excludes1 notes: I73.9 — Peripheral vascular disease, unspecified (via I70.2.-), I77.6 — Arteritis, unspecified (via I70.-).

These codes’ tabular lists mark this diagnosis as mutually exclusive — not reported together unless the conditions are documented as unrelated.

Referenced by 2 Code First instructions across 2 chapters: I70.92 — Chronic total occlusion of artery of the extremities (via I70.2.-), L97 — Non-pressure chronic ulcer of lower limb, not elsewhere classified (via I70.24.-).

Each of these codes carries a Code First note naming this condition — when that code is reported, THIS code is sequenced first, ahead of it.

MS-DRG Grouper Relationships (FY2027)

Potential MS-DRG participation — not a DRG assignment.

FY2027 MS-DRG: not on the CMS CC/MCC list — as a secondary diagnosis this code does not change MS-DRG severity for that release.

Named in the grouper logic of 3 MS-DRGs: DRG 299 (MDC 05), DRG 300 (MDC 05), DRG 301 (MDC 05).

From the CMS MS-DRG Definitions Manual (Appendices B and C). Actual DRG assignment depends on the complete claim.

Clinical classification (AHRQ CCSR):CIR026 — Peripheral and visceral vascular disease (default).

Clinical Classifications Software Refined (CCSR) for ICD-10-CM Diagnoses. Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality.

Related Codes

Same condition, opposite side

Same category and title, differing only in which side of the body is affected.

I70.238 — Atherosclerosis of native arteries of right leg with ulceration of other part of lower legCompare I70.248 vs I70.238 →

Same CMS-HCC risk category (V28)

CMS maps these diagnoses to the same Hierarchical Condition Categories (Atherosclerosis of Arteries of the Extremities with Ulceration or Gangrene, Chronic Ulcer of Skin, Except Pressure, Not Specified as Through to Bone or Muscle) for risk-adjusted payment.

I70.233 — Atherosclerosis of native arteries of right leg with ulceration of ankle, I70.234 — Atherosclerosis of native arteries of right leg with ulceration of heel and midfoot, I70.235 — Atherosclerosis of native arteries of right leg with ulceration of other part of foot, I70.238 — Atherosclerosis of native arteries of right leg with ulceration of other part of lower leg, I70.239 — Atherosclerosis of native arteries of right leg with ulceration of unspecified site, I70.241 — Atherosclerosis of native arteries of left leg with ulceration of thigh, I70.242 — Atherosclerosis of native arteries of left leg with ulceration of calf, I70.243 — Atherosclerosis of native arteries of left leg with ulceration of ankle, I70.244 — Atherosclerosis of native arteries of left leg with ulceration of heel and midfoot, I70.245 — Atherosclerosis of native arteries of left leg with ulceration of other part of foot, I70.249 — Atherosclerosis of native arteries of left leg with ulceration of unspecified site, I70.25 — Atherosclerosis of native arteries of other extremities with ulceration, I70.261 — Atherosclerosis of native arteries of extremities with gangrene, right leg, I70.262 — Atherosclerosis of native arteries of extremities with gangrene, left leg, I70.263 — Atherosclerosis of native arteries of extremities with gangrene, bilateral legs, I70.268 — Atherosclerosis of native arteries of extremities with gangrene, other extremity, I70.269 — Atherosclerosis of native arteries of extremities with gangrene, unspecified extremity, I70.331 — Atherosclerosis of unspecified type of bypass graft(s) of the right leg with ulceration of thigh, I70.332 — Atherosclerosis of unspecified type of bypass graft(s) of the right leg with ulceration of calf, I70.333 — Atherosclerosis of unspecified type of bypass graft(s) of the right leg with ulceration of ankle, +324 more

Related risk categories

These categories interact through CMS's HCC hierarchy — one can suppress the other's risk-adjustment weight when both are present on a claim.

Vascular Disease with Complications, Amputation Status, Lower Limb/Amputation Complications, Pressure Ulcer of Skin with Necrosis Through to Muscle, Tendon, or Bone, Chronic Ulcer of Skin, Except Pressure, Through to Bone or Muscle, Pressure Ulcer of Skin with Full Thickness Skin Loss, Pressure Ulcer of Skin with Partial Thickness Skin Loss

Same clinical category (CCSR)

AHRQ's Clinical Classifications Software groups these diagnoses under the same clinical category (Peripheral and visceral vascular disease).

I70.233 — Atherosclerosis of native arteries of right leg with ulceration of ankle, I70.234 — Atherosclerosis of native arteries of right leg with ulceration of heel and midfoot, I70.235 — Atherosclerosis of native arteries of right leg with ulceration of other part of foot, I70.238 — Atherosclerosis of native arteries of right leg with ulceration of other part of lower leg, I70.239 — Atherosclerosis of native arteries of right leg with ulceration of unspecified site, I70.241 — Atherosclerosis of native arteries of left leg with ulceration of thigh, I70.242 — Atherosclerosis of native arteries of left leg with ulceration of calf, I70.243 — Atherosclerosis of native arteries of left leg with ulceration of ankle, I70.244 — Atherosclerosis of native arteries of left leg with ulceration of heel and midfoot, I70.245 — Atherosclerosis of native arteries of left leg with ulceration of other part of foot, I70.249 — Atherosclerosis of native arteries of left leg with ulceration of unspecified site, I70.25 — Atherosclerosis of native arteries of other extremities with ulceration, I70.261 — Atherosclerosis of native arteries of extremities with gangrene, right leg, I70.262 — Atherosclerosis of native arteries of extremities with gangrene, left leg, I70.263 — Atherosclerosis of native arteries of extremities with gangrene, bilateral legs, I70.268 — Atherosclerosis of native arteries of extremities with gangrene, other extremity, I70.269 — Atherosclerosis of native arteries of extremities with gangrene, unspecified extremity, I70.291 — Other atherosclerosis of native arteries of extremities, right leg, I70.292 — Other atherosclerosis of native arteries of extremities, left leg, I70.293 — Other atherosclerosis of native arteries of extremities, bilateral legs, +255 more

Same Index main term, other category

The ICD-10-CM Index to Diseases and Injuries files this code under the main term “Arteriosclerosis, arteriosclerotic”; these codes share that main term but sit in a different category of the Tabular List.

I25.760 — Atherosclerosis of bypass graft of coronary artery of transplanted heart with unstable angina (coronary, transplanted heart, bypass graft, with, angina pectoris, unstable), I25.761 — Atherosclerosis of bypass graft of coronary artery of transplanted heart with angina pectoris with documented spasm (coronary, transplanted heart, bypass graft, with, angina pectoris, with documented spasm), I25.762 — Atherosclerosis of bypass graft of coronary artery of transplanted heart with refractory angina pectoris (coronary, transplanted heart, bypass graft, with, angina pectoris, refractory), I25.768 — Atherosclerosis of bypass graft of coronary artery of transplanted heart with other forms of angina pectoris (coronary, transplanted heart, bypass graft, with, angina pectoris, specified type), I25.769 — Atherosclerosis of bypass graft of coronary artery of transplanted heart with unspecified angina pectoris (coronary, transplanted heart, bypass graft, with, angina pectoris), I25.790 — Atherosclerosis of other coronary artery bypass graft(s) with unstable angina pectoris (coronary, bypass graft, specified type NEC, with, angina pectoris, unstable), I25.791 — Atherosclerosis of other coronary artery bypass graft(s) with angina pectoris with documented spasm (coronary, bypass graft, specified type NEC, with, angina pectoris, with documented spasm), I25.792 — Atherosclerosis of other coronary artery bypass graft(s) with refractory angina pectoris (coronary, bypass graft, specified type NEC, with, angina pectoris, refractory), I25.798 — Atherosclerosis of other coronary artery bypass graft(s) with other forms of angina pectoris (coronary, bypass graft, specified type NEC, with, angina pectoris, specified type), I25.799 — Atherosclerosis of other coronary artery bypass graft(s) with unspecified angina pectoris (coronary, bypass graft, specified type NEC, with, angina pectoris), I25.810 — Atherosclerosis of coronary artery bypass graft(s) without angina pectoris (coronary, bypass graft), I25.811 — Atherosclerosis of native coronary artery of transplanted heart without angina pectoris (coronary, transplanted heart), I25.812 — Atherosclerosis of bypass graft of coronary artery of transplanted heart without angina pectoris (coronary, transplanted heart, bypass graft), I25.83 — Coronary atherosclerosis due to lipid rich plaque (coronary, due to, lipid rich plaque), I25.84 — Coronary atherosclerosis due to calcified coronary lesion (coronary, due to, calcified coronary lesion), I27.0 — Primary pulmonary hypertension (pulmonary), I51.4 — Myocarditis, unspecified (myocarditis), I65.2 — Occlusion and stenosis of carotid artery (carotid), I67.2 — Cerebral atherosclerosis (brain), K55.1 — Chronic vascular disorders of intestine (mesenteric), +32 more

Lab tests where this diagnosis supports Medicare coverage (NCD)

Medicare's National Coverage Determination (NCD) program lists this diagnosis as medical justification for these lab tests.

Blood Glucose Test, Lipid Panel, Prothrombin Time Test and INR (PT/INR)

Contextual Map

Every relationship of I70.248 in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.

Run I70.248 with these 4 related codes in Claim Check

Hierarchy

Referenced by Excludes1 notes

Referenced by Code First instructions

Clinical classification (CCSR)

Risk adjustment (CMS-HCC)

  • HCC 263 — Atherosclerosis of Arteries of the Extremities with Ulceration or Gangrene [CMS-HCC]: “Atherosclerosis of Arteries of the Extremities with Ulceration or Gangrene — supersedes HCC 264 (Vascular Disease with Complications), HCC 383 (Chronic Ulcer of Skin, Except Pressure, Not Specified as Through to Bone or Muscle), HCC 409 (Amputation Status, Lower Limb/Amputation Complications)”— CMS-HCC V28 · 2026
  • HCC 383 — Chronic Ulcer of Skin, Except Pressure, Not Specified as Through to Bone or Muscle [CMS-HCC]— CMS-HCC V28 · 2026

MS-DRG Grouper

MDC crossing

  • MDC 05 — Diseases and Disorders of the Circulatory System[MDC crossing]: “Diseases and Disorders of the Circulatory System — the grouper's crossing between diagnoses and procedures: a principal diagnosis sets the MDC, and same-MDC procedures move the stay to its surgical DRGs. 15,708 same-MDC procedures group here; browse them on the MDC page.”— CMS MS-DRG Definitions Manual · FY2027

Index entries

  • Arteriosclerosis, arteriosclerotic (diffuse) (obliterans) (of) (senile) (with calcification), extremities (native arteries), leg, left, with, ulceration (and intermittent claudication and rest pain), lower leg NEC[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2027
  • Arteriosclerosis, arteriosclerotic (diffuse) (obliterans) (of) (senile) (with calcification), with, critical limb ischemia, leg, left, with, ulceration (and intermittent claudication and rest pain), lower leg NEC[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2027

Nearest codes (40)

Change history (3)

Reference

Index terms and tables, published questions and FAQ, every source behind this page with its release and checksum, the date-of-service check and the complete change history.

Indexed Clinical Terms (2)

Official source data — entries quoted as published, in the Index’s own lookup phrasing

Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code. These are alphabetic-index entries shown as the Index writes them — lookup phrasing, not necessarily the wording of a final diagnosis.

Sources for this page

Codes, titles, notes, index terms and mappings on this page are transcribed from the datasets below. Relationships MedCoder computed and text MedCoder wrote are labelled where they appear.

Code, title, tabular notes and index terms Official source data
CMS/CDC ICD-10-CM FY2027 tabular list, index and tables, effective October 1, 2026 Release, file and checksum · Publisher’s page
Claim edits Official source data
CMS Definitions of Medicare Code Edits — v44.0 (October 2026) Release, file and checksum · Publisher’s page
Inpatient payment groups Official source data
CMS MS-DRG Definitions Manual (incl. Appendix B diagnosis index, Appendix C CC/MCC list, Appendix E procedure index) and IPPS Final Rule tables — v44 Release, file and checksum · Publisher’s page
Risk adjustment Official source data
2026 Mid-Year Final ICD-10 Mappings + Model Software (cms.gov/files/zip/2026-midyear-final-icd-10-mappings.zip, 2026-midyear-final-model-software.zip) — CMS-HCC V28, PY2026 mid-year final release Release, file and checksum · Publisher’s page
Change history and date-of-service validity Official source data
CMS ICD-10-CM release addenda, ingested release by release into the change ledger Release, file and checksum · Publisher’s page
Comparisons, relationships and the contextual map MedCoder-derived relationship
Computed by MedCoder from the tabular notes and tables above; every derived relationship is marked as derived where it appears
Summary and FAQ answers MedCoder editorial explanation
Written by MedCoder to explain the sources above: drafted with AI assistance, checked by a person against the release files, and labelled as MedCoder text where it appears. Not official text.

Current data releases:ICD-10-CM FY2027 · ICD-10-PCS FY2027 · HCPCS October 2026 · MS-DRG v44 · Medicare Code Editor v44.0 · NCCI PTP Q4 2026 · MUE Q4 2026 · NCD code lists 2026-01 · LCD export September 28, 2026 · All releases and sources

Labels on this page: Official source data · MedCoder-derived relationship · MedCoder editorial explanation. How to read the labels · All data sources and release dates · CMS coding rules

Cite this page

Reference this page in a research guide, syllabus or article. The release is included because code content changes each year.

MedCoder.ai. "I70.248 — Atherosclerosis of native arteries of left leg with ulceration of other part of lower leg." ICD-10-CM FY2027. https://medcoder.ai/icd10/code/i70.248-atherosclerosis-of-native-arteries-of-left-leg-with-ulceration-of-other-part-of-lower-leg

Change history

  • FY2020 — October 1, 2019
    Description revised
    Atherosclerosis of native arteries of left leg with ulceration of other part of lower left leg → Atherosclerosis of native arteries of left leg with ulceration of other part of lower leg
    FY2020 changes
  • FY2020 — October 1, 2019
    Short description revised
    Athscl native art of left leg w ulcer oth prt lower left leg → Athscl native art of left leg with ulcer oth prt low leg
    FY2020 changes
  • FY2016 — October 1, 2015
    In the code set at ICD-10-CM adoption
    Atherosclerosis of native arteries of left leg with ulceration of other part of lower left leg

Nearest Codes in This Family

Official ICD-10-CM classifications closest to I70.248 in its code family, with their registry titles.

View all codes in the I70 family