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Z99.2 ICD-10-CM Code: Dependence on renal dialysis

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

Coding at a Glance

Tabular directives
4 inclusion terms · 1 Excludes1 · 1 Excludes2 · 1 code-also instruction
Risk adjustment
CMS-HCC V22 category 134 · RxHCC V08 category 261

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 951 — OTHER FACTORS INFLUENCING HEALTH STATUS (MDC 23)

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.

Coding instructions

Official Tabular Instructional Notes: the inclusion, exclusion and sequencing notes published for Z99.2 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 Z99.2 itself; “inherited from” names the category or block whose note applies here.

Inclusion Terms

Alternative terms the tabular list files under this code.

  • Hemodialysis status
  • Peritoneal dialysis status
  • Presence of arteriovenous shunt for dialysis
  • Renal dialysis status NOS

Excludes1 — Not Coded Here

Conditions generally not reported together with this code (Excludes1) -- an error unless the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).

Excludes2 — Not Included Here

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

Code Also

Additional codes that may be required to fully describe the encounter.

  • any follow-up examination (Z08-Z09)

Source: inherited from Z77-Z99

Coder workflow for Z99.2

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

Before you code Z99.2

  1. Confirm the reason for the encounter this Z code records: a status — a condition, carrier state or sequela that may affect care, distinct from a current complication of it. Check whether the code may be reported as first-listed or principal — some Z codes are limited to one position — and do not report a history or status code for a condition documented as current. Z code categories and their reporting positions (Guidelines I.C.21.c.3, I.C.21.c.15).

    Guide: Status codes (Z codes) →

  2. Check the Excludes1 note: if the documentation supports a condition named there, do not simply proceed with Z99.2. Excludes1 conditions are not reported together with this code unless the record shows they are unrelated (Guidelines I.A.12.a).

    See the official tabular notes

Choose the right path

  1. Does the documentation support a condition named in Z99.2’s Excludes1 note?
    Yes → Do not simply proceed: review the excluded code. Both are reported only when the record shows the two conditions are unrelated.
    No → Continue.

    ReviewZ49.0

Consider Z99.2. Then review the Code Also 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).
The reason for the encounter
Whether the code records the encounter’s purpose, a status, or a history — and whether it may be first-listed (Guidelines I.C.21.c).

Official instructions as workflow

  • Excludes1 — check before selecting Z99.2(1 note)

    Coding workflow: If the documentation supports a condition named in this note, do not simply proceed with Z99.2: the two are not reported together. The one exception is when the record shows the two conditions are unrelated to each other.

    CompareZ49.0

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

  • Excludes2 — not part of Z99.2(1 note)

    Coding workflow: The conditions named in this note are not included in Z99.2. When the record documents both, both may be reported; the note is a boundary, not a prohibition.

    CompareZ91.15

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

  • Code Also — related condition(1 note)

    Coding workflow: Review the related condition when both are documented and the instruction applies. A Code Also note does not fix sequencing; the order follows the circumstances of the encounter.

    See the official tabular notes · Guidelines I.A.17

Coding decision scenarios

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

Documentation: Both the condition Z99.2 describes and a condition named in its Excludes1 note are documented for the same encounter.

Coding question: Can both codes be reported?

Path: Review the Excludes1 note and the excluded code, and look for a provider statement on whether the two conditions are related.

Reason: Excludes1 means the two are not coded together; the exception is when the record shows the conditions are unrelated to each other (Guidelines I.A.12.a).

ReviewZ49.0

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.

Coding context

The comparisons, hierarchy, index entries, guidelines, relationships, risk-adjustment and coverage context a coder commonly needs. Each section names whether it is official source data, a MedCoder-derived relationship or MedCoder editorial.

Don’t confuse Z99.2 with…

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

The codes most likely to be picked instead of Z99.2 — 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.

  • Z49.0— Excludes1 conflict (Excludes1 — generally not reported together)

    Not coded here — the tabular list excludes this pair for the same encounter.

    Not reported together with this code, except where the two conditions are documented as unrelated.

    What moves you there: Documentation of encounter for fitting and adjustment of dialysis catheter moves the case to Z49.0; the two are not reported together unless documented as unrelated.

    Full comparison: Z99.2 vs Z49.0 →

  • Z91.15— 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 noncompliance with renal dialysis adds Z91.15; it is not part of this code and both may be reported when both are documented.

    Full comparison: Z99.2 vs Z91.15 →

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.

Code Overview

Dependence on renal dialysis is a billable ICD-10-CM diagnosis code (Z99.2).

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

Indexed Clinical Terms (8)

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.

Official Coding Guidelines

Official source data — quoted verbatim from the CMS/NCHS Official Guidelines

Verbatim excerpts from the ICD-10-CM Official Guidelines for Coding and Reporting (CMS/NCHS) that govern this code.

Chapter 20: External Causes of Morbidity (V00-Y99)

1) Used with any code in the range of A00.0-T88.9, Z00-Z99 An external cause code may be used with any code in the range of A00.0-T88.9, Z00-Z99, classification that represents a health condition due to an external cause. Though they are most applicable to injuries, they are also valid for use with such things as infections or diseases due to an external source, and other health conditions, such as a heart attack that occurs during strenuous physical activity.

Chapter 21: Factors influencing health status and contact with health services (Z00-Z99)

Z99 Dependence on enabling machines and devices, not elsewhere classified Note: Categories Z89-Z90 and Z93-Z99 are for use only if there are no complications or malfunctions of the organ or tissue replaced, the amputation site or the equipment on which the patient is dependent.

Decision Points

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

  1. 1 Code Also note — a second code may apply; the guidelines leave its sequencing to the circumstances of the encounter. See the Code Also notes
  2. 1 Excludes1 entry — codes named there are generally not reported together with this code (Guidelines I.A.12.a). See the Excludes1 notes
  3. 1 Excludes2 entry — 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

  • Principal-diagnosis restriction. The Medicare Code Editor lists this code as unacceptable as a principal diagnosis: it describes a circumstance influencing health status rather than a current illness or injury being treated. It is valid as a secondary diagnosis.

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 structured relationships — computed from published CMS and AHRQ datasets

Other codes that name Z99.2 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 1 Excludes1 note: I77.0 — Arteriovenous fistula, acquired.

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

Referenced by 2 Excludes2 notes: Z74 — Problems related to care provider dependency (via Z99.-), Z78 — Other specified health status (via Z99.-).

These codes’ tabular lists name this diagnosis as distinct — both may be reported when both are documented.

Referenced by 1 Use Additional Code instruction: N18.6 — End stage renal disease.

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

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 1 MS-DRG: DRG 951 (MDC 23).

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

Clinical classification (AHRQ CCSR):FAC025 — Other specified status (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

Principal diagnosis restriction (Medicare Code Editor)

Not acceptable as a principal diagnosis on an inpatient claim.

Same clinical category (CCSR)

AHRQ's Clinical Classifications Software groups these diagnoses under the same clinical category (Other specified status).

Z91.A91 — Caregiver's noncompliance with patient's other medical treatment and regimen due to financial hardship, Z91.A98 — Caregiver's noncompliance with patient's other medical treatment and regimen for other reason, Z91.B — Personal risk factor of exposure to diethylstilbestrol, Z93.0 — Tracheostomy status, Z93.1 — Gastrostomy status, Z93.2 — Ileostomy status, Z93.3 — Colostomy status, Z93.4 — Other artificial openings of gastrointestinal tract status, Z93.50 — Unspecified cystostomy status, Z93.51 — Cutaneous-vesicostomy status, Z93.52 — Appendico-vesicostomy status, Z93.59 — Other cystostomy status, Z93.6 — Other artificial openings of urinary tract status, Z93.8 — Other artificial opening status, Z93.9 — Artificial opening status, unspecified, Z99.0 — Dependence on aspirator, Z99.11 — Dependence on respirator [ventilator] status, Z99.3 — Dependence on wheelchair, Z99.81 — Dependence on supplemental oxygen, Z99.89 — Dependence on other enabling machines and devices, +232 more

Same Index main term, other category

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

Z97.8 — Presence of other specified devices (device NEC), Z98.0 — Intestinal bypass and anastomosis status (anastomosis), Z98.1 — Arthrodesis status (arthrodesis), Z98.2 — Presence of cerebrospinal fluid drainage device (CSF shunt), Z98.3 — Post therapeutic collapse of lung status (pneumothorax, therapeutic), Z98.4 — Cataract extraction status (cataract extraction), Z98.51 — Tubal ligation status (tubal ligation), Z98.52 — Vasectomy status (vasectomy), Z98.61 — Coronary angioplasty status (angioplasty, coronary artery), Z98.62 — Peripheral vascular angioplasty status (angioplasty), Z98.810 — Dental sealant status (dental, sealant), Z98.811 — Dental restoration status (dental, crown), Z98.818 — Other dental procedure status (dental), Z98.82 — Breast implant status (breast implant), Z98.83 — Filtering (vitreous) bleb after glaucoma surgery status (filteringbleb after glaucoma surgery), Z98.84 — Bariatric surgery status (obesity surgery), Z98.85 — Transplanted organ removal status (transplant, organ removed), Z98.86 — Personal history of breast implant removal (breast implant, removal), Z98.890 — Other specified postprocedural states (postsurgical NEC), Z98.891 — History of uterine scar from previous surgery (postoperative NEC, uterine scar), +424 more

Contextual Map

Every relationship of Z99.2 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 Z99.2 with these 6 related codes in Claim Check

Hierarchy

Excludes1

Excludes2

Referenced by Excludes1 notes

Referenced by Excludes2 notes

Referenced by Use Additional Code instructions

  • N18.6 — End stage renal disease[Use Additional Code]: “code to identify dialysis status (Z99.2)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2027

Clinical classification (CCSR)

MS-DRG Grouper

MDC crossing

  • MDC 23 — Factors Influencing Health Status and Other Contacts with Health Services[MDC crossing]: “Factors Influencing Health Status and Other Contacts with Health Services — 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. 1,258 same-MDC procedures group here; browse them on the MDC page.”— CMS MS-DRG Definitions Manual · FY2027

Index entries

  • Dependence (on) (syndrome), on, renal dialysis (hemodialysis) (peritoneal)[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2027
  • Dialysis (intermittent) (treatment), renal, status (hemodialysis) (peritoneal)[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2027
  • Fistula (cutaneous), arteriovenous (acquired) (nonruptured), surgically created (for dialysis)[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2027
  • Presence (of), arterial-venous shunt (dialysis)[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2027
  • Shunt, arterial-venous (dialysis)[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2027
  • Status (post), dialysis (hemodialysis) (peritoneal)[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2027
  • Status (post), renal dialysis (hemodialysis) (peritoneal)[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2027
  • Status (post), shunt, arteriovenous (for dialysis)[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2027

Nearest codes (9)

Change history

  • FY2016 — In the code set at ICD-10-CM adoption [Change history]— CMS release files (code change ledger) · icd10cm-fy2016

Relevant guides

Deep reference

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

When is Z99.2 reported?

Whenever dialysis dependence is documented and relevant — its inclusion terms cover hemodialysis status, peritoneal dialysis status, and presence of an arteriovenous shunt for dialysis. N18.6 asks for it by name in its Use Additional Code note. Where status codes belong on a claim is in Status codes.

Is Z99.2 used for a dialysis catheter fitting?

No — encounter for fitting and adjustment of a dialysis catheter is an Excludes1 routing to Z49.0-. And documented noncompliance with renal dialysis has its own Excludes2 destination, Z91.15-.

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
Coding guidelines Official source data
ICD-10-CM Official Guidelines for Coding and Reporting (FY2027), quoted by section 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
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 structured 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 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 20, 2026 · All releases and sources

Labels on this page: Official source data · MedCoder structured relationship · MedCoder 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. "Z99.2 — Dependence on renal dialysis." ICD-10-CM FY2027. https://medcoder.ai/icd10/code/z99.2-dependence-on-renal-dialysis

Change history

  • FY2016 — October 1, 2015
    In the code set at ICD-10-CM adoption
    Dependence on renal dialysis

No changes since FY2016 — additions, deletions, description changes and billable-status changes are tracked through FY2027, and none are recorded for this code. Note changes are tracked from FY2027 only.

Nearest Codes in This Family

Official ICD-10-CM classifications closest to Z99.2 in its code family, with their registry titles.

View all codes in the Z99 family