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L98.A22 ICD-10-CM Code: Non-pressure chronic ulcer of left forearm

Compare with another code for L98.A22Check this code on a claim

Billing Status: NO. This is a non-billable ICD-10-CM code: report a more specific billable code beneath it.

Coding at a Glance

Official instructions
6 Excludes2

What these terms mean →

Not billable · FY2027A non-billable heading in the tabular list: report a more specific code beneath it.

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, and is marked with where it comes from.

Excludes2from L98.ANot included here; may be reported together
  • gangrene (I96)
  • pressure ulcer (pressure area) (L89.-)
  • skin infections (L00-L08)
  • specific infections classified to A00-B99

+2 more in Instructions

Where it sits Source: CMS/NCHS

Under:Chapter 12: Diseases of the Skin and Subcutaneous TissueL80-L99 Other disorders of the skin and subcutaneous tissueL98 Other disorders of skin and subcutaneous tissue, not elsewhere classifiedL98.A Non-pressure chronic ulcer of upper limb, not elsewhere classifiedL98.A2 Non-pressure chronic ulcer of forearm

Codes under L98.A22 (8)

  • L98.A221Non-pressure chronic ulcer of left forearm limited to breakdown of skinBillable
  • L98.A222Non-pressure chronic ulcer of left forearm with fat layer exposedBillable
  • L98.A223Non-pressure chronic ulcer of left forearm with necrosis of muscleBillable
  • L98.A224Non-pressure chronic ulcer of left forearm with necrosis of boneBillable
  • L98.A225Non-pressure chronic ulcer of left forearm with muscle involvement without evidence of necrosisBillable
  • L98.A226Non-pressure chronic ulcer of left forearm with bone involvement without evidence of necrosisBillable
  • L98.A228Non-pressure chronic ulcer of left forearm with other specified severityBillable
  • L98.A229Non-pressure chronic ulcer of left forearm with unspecified severityBillable

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

Coding instructions

Official Tabular Instructional Notes: the inclusion, exclusion and sequencing notes published for L98.A22 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 L98.A22 itself; “inherited from” names the category or block whose note applies here.

Excludes2 — Not Included Here

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

Source: inherited from L98.A

Coder workflow for L98.A22

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

Before you code L98.A22

  1. L98.A22 is not reportable as written. Select the more specific code beneath it that the documentation supports. Codes are reported to the highest level of specificity the classification provides (Guidelines I.B.2).

    ReviewL98.A221, L98.A222, L98.A223, L98.A224, L98.A225, L98.A226, L98.A228, L98.A229

    See the relationships section · Guide: How to choose an ICD-10-CM code →

  2. 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).

    ReviewL98.A21 · right, L98.A29 · unspecified

    Guide: Laterality coding →

Choose the right path

  1. Does the documentation support one of the more specific codes beneath L98.A22?
    Yes → Select that code and continue the checks below on its own page.
    No → L98.A22 cannot be reported as written. Where the codes beneath it include an unspecified code, that code applies when the record goes no further; otherwise query for the missing detail.

    ReviewL98.A221, L98.A222, L98.A223, L98.A224, L98.A225, L98.A226, L98.A228, L98.A229

  2. 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.

    ReviewL98.A21 · right, L98.A29 · unspecified

Report the code beneath L98.A22 that the documentation supports, not L98.A22 itself. Then confirm that code is valid for the date of service on its own page.

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).
Laterality
Right, left or bilateral as documented; unspecified only when the record states no side (Guidelines I.B.13).
Acuity
Acute or chronic as documented; when both are documented and separate codes exist, both are reported with the acute code first (Guidelines I.B.8).

Official instructions as workflow

  • Excludes2 — not part of L98.A22(6 notes)

    Coding workflow: The conditions named in this note are not included in L98.A22. When the record documents both, both may be reported; the note is a boundary, not a prohibition.

    CompareI96, L89, L97

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

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).

ReviewL98.A21 · right, L98.A29 · unspecified

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 L98.A22 with…

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

The codes most likely to be picked instead of L98.A22 — 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.

  • L98.A29— 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 “Non-pressure chronic ulcer of unspecified forearm” takes L98.A29; specificity in the record moves it back here.

    Full comparison: L98.A22 vs L98.A29 →

  • L98.A21— Laterality relationship (Review)

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

    The same condition with a different side named (the opposite side, both sides, or none); 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 L98.A21.

    Full comparison: L98.A22 vs L98.A21 →

  • I96— 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 gangrene adds I96; it is not part of this code and both may be reported when both are documented.

    Full comparison: L98.A22 vs I96 →

  • L89— 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 pressure ulcer (pressure area) adds L89; it is not part of this code and both may be reported when both are documented.

    Full comparison: L98.A22 vs L89 →

  • L00— 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 skin infections adds L00; it is not part of this code and both may be reported when both are documented.

    Full comparison: L98.A22 vs L00 →

  • L08— 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 skin infections adds L08; it is not part of this code and both may be reported when both are documented.

    Full comparison: L98.A22 vs L08 →

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

Non-pressure chronic ulcer of left forearm is a non-billable ICD-10-CM category code (L98.A22). A more specific billable subcode must be selected for claims submission.

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

Verify Before Coding

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 L98.A22 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 5 Use Additional Code instructions: E08.622 — Diabetes mellitus due to underlying condition with other skin ulcer (via L98.-), E09.622 — Drug or chemical induced diabetes mellitus with other skin ulcer (via L98.-), E10.622 — Type 1 diabetes mellitus with other skin ulcer (via L98.-), E11.622 — Type 2 diabetes mellitus with other skin ulcer (via L98.-), E13.622 — Other specified diabetes mellitus with other skin ulcer (via L98.-).

These codes instruct coders to additionally report this code when it applies.

Related Codes

Same condition, different side

Same title, differing only in which side of the body it names: right, left, bilateral or unspecified.

L98.A21 — Non-pressure chronic ulcer of right forearm (right)Compare L98.A22 vs L98.A21 →, L98.A29 — Non-pressure chronic ulcer of unspecified forearm (unspecified)Compare L98.A22 vs L98.A29 →

Contextual Map

Every relationship of L98.A22 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 L98.A22 with these 5 related codes in Claim Check

Hierarchy

Referenced by Use Additional Code instructions

Nearest codes (40)

Change history

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.

Common coding questions

MedCoder editorial

Can L98.A22 be billed directly?

No. L98.A22 (Non-pressure chronic ulcer of left forearm) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.

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
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. "L98.A22 — Non-pressure chronic ulcer of left forearm." ICD-10-CM FY2027. https://medcoder.ai/icd10/code/l98.a22-non-pressure-chronic-ulcer-of-left-forearm

Change history

  • FY2026 — October 1, 2025
    Added to the code set
    Non-pressure chronic ulcer of left forearm
    FY2026 changes

Nearest Codes in This Family

Official ICD-10-CM classifications closest to L98.A22 in its code family, with their registry titles.

View all codes in the L98 family