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N25.0 ICD-10-CM Code: Renal osteodystrophy

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

Coding at a Glance

Tabular directives
4 inclusion terms · 2 Excludes2
Risk adjustment
RxHCC V08 category 87

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 v43, Appendix B.

  • MS-DRG 698 — OTHER KIDNEY AND URINARY TRACT DIAGNOSES WITH MCC (MDC 11)
  • MS-DRG 699 — OTHER KIDNEY AND URINARY TRACT DIAGNOSES WITH CC (MDC 11)
  • MS-DRG 700 — OTHER KIDNEY AND URINARY TRACT DIAGNOSES WITHOUT CC/MCC (MDC 11)

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 N25.0 in the official ICD-10-CM tabular list, quoted as published.

Source: CMS/CDC — ICD-10-CM Tabular ListRelease: FY2026Effective: October 1, 2025

Notes without a marker are published on N25.0 itself; “inherited from” names the category or block whose note applies here.

Inclusion Terms

Alternative terms the tabular list files under this code.

  • Azotemic osteodystrophy
  • Phosphate-losing tubular disorders
  • Renal rickets
  • Renal short stature

Excludes2 — Not Included Here

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

Coder workflow for N25.0

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

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).

Official instructions as workflow

  • Excludes2 — not part of N25.0(2 notes)

    Coding workflow: The conditions named in this note are not included in N25.0. When the record documents both, both may be reported; the note is a boundary, not a prohibition.

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

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.

Code Overview

Renal osteodystrophy is a billable ICD-10-CM diagnosis code (N25.0).

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 (15)

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.

Verify Before Coding

  • No Medicare Code Editor or MS-DRG Definitions Manual restrictions apply to this code.

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 N25.0 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 4 Excludes1 notes across 2 chapters: E34.3 — Short stature due to endocrine disorder, E55.0 — Rickets, active, M83 — Adult osteomalacia, M90 — Osteopathies in diseases classified elsewhere.

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

MS-DRG Grouper Relationships (FY2026)

Potential MS-DRG participation — not a DRG assignment.

FY2026 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 698 (MDC 11), DRG 699 (MDC 11), DRG 700 (MDC 11).

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

Clinical classification (AHRQ CCSR):GEN006 — Other specified and unspecified diseases of kidney and ureters (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 clinical category (CCSR)

AHRQ's Clinical Classifications Software groups these diagnoses under the same clinical category (Other specified and unspecified diseases of kidney and ureters).

N13.0 — Hydronephrosis with ureteropelvic junction obstruction, N13.1 — Hydronephrosis with ureteral stricture, not elsewhere classified, N13.2 — Hydronephrosis with renal and ureteral calculous obstruction, N13.30 — Unspecified hydronephrosis, N13.39 — Other hydronephrosis, N13.4 — Hydroureter, N13.5 — Crossing vessel and stricture of ureter without hydronephrosis, N13.8 — Other obstructive and reflux uropathy, N13.9 — Obstructive and reflux uropathy, unspecified, N23 — Unspecified renal colic, N25.1 — Nephrogenic diabetes insipidus, N25.81 — Secondary hyperparathyroidism of renal origin, N25.89 — Other disorders resulting from impaired renal tubular function, N25.9 — Disorder resulting from impaired renal tubular function, unspecified, N26.1 — Atrophy of kidney (terminal), N26.2 — Page kidney, N27.0 — Small kidney, unilateral, N27.1 — Small kidney, bilateral, N27.9 — Small kidney, unspecified, N28.0 — Ischemia and infarction of kidney, +16 more

Same Index main term, other category

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

N07.A — Hereditary nephropathy, not elsewhere classified with C3 glomerulonephritis (hereditary NEC, with, C3, glomerulopathy), N07.B — Hereditary nephropathy, not elsewhere classified with APOL1-mediated kidney disease [AMKD] (hereditary NEC, with, APOL1-mediated kidney disease), N13.8 — Other obstructive and reflux uropathy (obstructive), N14.0 — Analgesic nephropathy (analgesic), N14.11 — Contrast-induced nephropathy (contrast-induced), N14.19 — Nephropathy induced by other drugs, medicaments and biological substances (drug-induced, specified NEC), N14.2 — Nephropathy induced by unspecified drug, medicament or biological substance (drug-induced), N14.3 — Nephropathy induced by heavy metals (lead), N14.4 — Toxic nephropathy, not elsewhere classified (toxic NEC), N15.0 — Balkan nephropathy (Balkan), N17.0 — Acute kidney failure with tubular necrosis (vasomotor), N17.2 — Acute kidney failure with medullary necrosis (phenacetin), N28.9 — Disorder of kidney and ureter, unspecified, O26.83 — Pregnancy related renal disease (pregnancy-related), O33.1 — Maternal care for disproportion due to generally contracted pelvis (pelvis, with disproportion), O65.1 — Obstructed labor due to generally contracted pelvis (pelvis, with disproportion, causing obstructed labor), Q77.1 — Thanatophoric short stature (thanatophoric), Q77.4 — Achondroplasia (achondroplastic), Q77.8 — Other osteochondrodysplasia with defects of growth of tubular bones and spine (metatropic), Q78.9 — Osteochondrodysplasia, unspecified, +54 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.

Gamma-glutamyl Transferase (GGT) Test, Lipid Panel

Contextual Map

Every relationship of N25.0 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 N25.0 with these 12 related codes in Claim Check

Hierarchy

Excludes2 (17)

Referenced by Excludes1 notes

Clinical classification (CCSR)

MS-DRG Grouper

MDC crossing

  • MDC 11 — Diseases and Disorders of the Kidney and Urinary Tract[MDC crossing]: “Diseases and Disorders of the Kidney and Urinary Tract — 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. 3,574 same-MDC procedures group here; browse them on the MDC page.”— CMS MS-DRG Definitions Manual · FY2026

Index entries (15)

  • Disease, diseased, renal (functional) (pelvis), phosphate-losing (tubular)[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
  • Disorder (of), phosphate-losing tubular[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
  • Disorder (of), tubular, phosphate-losing[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
  • Dwarfism, renal[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
  • Infancy, infantile, infantilism, renal[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
  • Nephropathy, phosphate-losing[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
  • Osteodystrophy, azotemic[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
  • Osteodystrophy, renal[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
  • and 7 more

Nearest codes

Change history

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

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 FY2026 tabular list, index and tables, effective October 1, 2025 Release, file and checksum · Publisher’s page
Claim edits Official source data
CMS Definitions of Medicare Code Edits — v43.1 (April 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 — v43 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.

Labels on this page: Official source data · MedCoder structured relationship · MedCoder explanation. How to read the labels · All data sources and release dates

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. "N25.0 — Renal osteodystrophy." ICD-10-CM FY2026. https://medcoder.ai/icd10/code/n25.0-renal-osteodystrophy

Change history

  • FY2016 — October 1, 2015
    In the code set at ICD-10-CM adoption
    Renal osteodystrophy

No changes since FY2016 — additions, deletions, description changes and billable-status changes are tracked through FY2027 (effective October 1, 2026), 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 N25.0 in its code family, with their registry titles.

View all codes in the N25 family