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O25.2 ICD-10-CM Code: Malnutrition in childbirth

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

Coding at a Glance

Tabular directives
2 Excludes2

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 998 — PRINCIPAL DIAGNOSIS INVALID AS DISCHARGE DIAGNOSIS (MDC 14)

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 O25.2 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 O25.2 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 O20-O29

Coder workflow for O25.2

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

Before you code O25.2

  1. Confirm the condition is documented as complicating the pregnancy, childbirth, or the puerperium, and check the trimester where the code carries one and the fetus character where the category requires it. Chapter 15 codes belong on the maternal record only and take sequencing priority over codes from other chapters. It is the provider’s responsibility to state that a condition is not affecting the pregnancy; the trimester is assigned from the documentation (Guidelines I.C.15.a, I.C.15.a.1, I.C.15.a.3).

    Guide: How to choose an ICD-10-CM code →

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).
Trimester
Assigned from the documented trimester at the encounter, or the trimester in which the condition developed for inpatient stays (Guidelines I.C.15.a.3).

Official instructions as workflow

  • Excludes2 — not part of O25.2(2 notes)

    Coding workflow: The conditions named in this note are not included in O25.2. 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

Malnutrition in childbirth is a billable ICD-10-CM diagnosis code (O25.2).

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 (1)

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

  • Age-restricted: the Medicare Code Editor lists this as a maternity (age 9-64) 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 structured relationships — computed from published CMS and AHRQ datasets

Other codes that name O25.2 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 Excludes2 note: O99.2 — Endocrine, nutritional and metabolic diseases complicating pregnancy, childbirth and the puerperium (via O25.-).

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

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 1 MS-DRG: DRG 998 (MDC 14).

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

Clinical classification (AHRQ CCSR):PRG023 — Complications specified during childbirth (default); END008 — Malnutrition.

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 categories (Complications specified during childbirth, Malnutrition).

O24.420 — Gestational diabetes mellitus in childbirth, diet controlled, O24.424 — Gestational diabetes mellitus in childbirth, insulin controlled, O24.425 — Gestational diabetes mellitus in childbirth, controlled by oral hypoglycemic drugs, O24.429 — Gestational diabetes mellitus in childbirth, unspecified control, O24.82 — Other pre-existing diabetes mellitus in childbirth, O24.92 — Unspecified diabetes mellitus in childbirth, O25.10 — Malnutrition in pregnancy, unspecified trimester, O25.11 — Malnutrition in pregnancy, first trimester, O25.12 — Malnutrition in pregnancy, second trimester, O25.13 — Malnutrition in pregnancy, third trimester, O25.3 — Malnutrition in the puerperium, O26.62 — Liver and biliary tract disorders in childbirth, O26.72 — Subluxation of symphysis (pubis) in childbirth, O67.0 — Intrapartum hemorrhage with coagulation defect, O67.8 — Other intrapartum hemorrhage, O67.9 — Intrapartum hemorrhage, unspecified, O71.1 — Rupture of uterus during labor, O71.3 — Obstetric laceration of cervix, O71.4 — Obstetric high vaginal laceration alone, O71.5 — Other obstetric injury to pelvic organs, +104 more

Same Index main term, other category

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

O15.1 — Eclampsia complicating labor (complicated, by, eclampsia), O24.02 — Pre-existing type 1 diabetes mellitus, in childbirth (complicated, by, diabetes, pre-existing, type 1), O24.12 — Pre-existing type 2 diabetes mellitus, in childbirth (complicated, by, diabetes, pre-existing, type 2), O24.32 — Unspecified pre-existing diabetes mellitus in childbirth (complicated, by, diabetes, pre-existing), O24.420 — Gestational diabetes mellitus in childbirth, diet controlled (complicated, by, gestational, diabetes, diet controlled), O24.424 — Gestational diabetes mellitus in childbirth, insulin controlled (complicated, by, gestational, diabetes, insulincontrolled), O24.425 — Gestational diabetes mellitus in childbirth, controlled by oral hypoglycemic drugs (complicated, by, gestational, diabetes, oral drug controlled), O24.429 — Gestational diabetes mellitus in childbirth, unspecified control (complicated, by, diabetes, gestational), O24.82 — Other pre-existing diabetes mellitus in childbirth (complicated, by, diabetes, pre-existing, specified NEC), O24.92 — Unspecified diabetes mellitus in childbirth (complicated, by, diabetes), O26.5 — Maternal hypotension syndrome (complicated, by, hypotension), O26.62 — Liver and biliary tract disorders in childbirth (complicated, by, liver disorder), O26.72 — Subluxation of symphysis (pubis) in childbirth (complicated, by, subluxation of symphysis), O32.0 — Maternal care for unstable lie (complicated, by, malposition, malpresentation, without obstruction, unstable lie), O32.1 — Maternal care for breech presentation (cesarean, breech presentation), O32.2 — Maternal care for transverse and oblique lie (cesarean, oblique presentation), O32.3 — Maternal care for face, brow and chin presentation (cesarean, chin presentation), O32.4 — Maternal care for high head at term (cesarean, high head at term), O32.6 — Maternal care for compound presentation (complicated, by, malposition, malpresentation, without obstruction, compound), O32.8 — Maternal care for other malpresentation of fetus (complicated, by, prolapse, foot or leg), +177 more

Contextual Map

Every relationship of O25.2 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 O25.2 with this related code in Claim Check

Hierarchy

Referenced by Excludes2 notes

Clinical classification (CCSR)

MS-DRG Grouper

Index entries

  • Delivery (childbirth) (labor), complicated, by, malnutrition[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026

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. "O25.2 — Malnutrition in childbirth." ICD-10-CM FY2026. https://medcoder.ai/icd10/code/o25.2-malnutrition-in-childbirth

Change history

  • FY2016 — October 1, 2015
    In the code set at ICD-10-CM adoption
    Malnutrition in childbirth

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 O25.2 in its code family, with their registry titles.

View all codes in the O25 family