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P05.2 ICD-10-CM Code: Newborn affected by fetal (intrauterine) malnutrition not light or small for gestational age

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

Coding at a Glance

Tabular directives
1 inclusion term · 2 Excludes1

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 791 — PREMATURITY WITH MAJOR PROBLEMS (MDC 15)
  • MS-DRG 793 — FULL TERM NEONATE WITH MAJOR PROBLEMS (MDC 15)

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 P05.2 in the official ICD-10-CM tabular list, quoted as published.

Inclusion Terms

Alternative terms the tabular list files under this code.

  • Infant, not light or small for gestational age, showing signs of fetal malnutrition, such as dry, peeling skin and loss of subcutaneous tissue

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).

Coder workflow for P05.2

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

Before you code P05.2

  1. Check the Excludes1 note: if the documentation supports a condition named there, do not simply proceed with P05.2. 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 P05.2’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.

    ReviewP05.0, P05.1

Consider P05.2. Then 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).

Official instructions as workflow

  • Excludes1 — check before selecting P05.2(2 notes)

    Coding workflow: If the documentation supports a condition named in this note, do not simply proceed with P05.2: the two are not reported together. The one exception is when the record shows the two conditions are unrelated to each other.

    CompareP05.0, P05.1

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

Coding decision scenarios

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

Documentation: Both the condition P05.2 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).

ReviewP05.0, P05.1

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

Newborn affected by fetal (intrauterine) malnutrition not light or small for gestational age is a billable ICD-10-CM diagnosis code (P05.2).

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.

Official Coding Guidelines

Official source data — quoted verbatim from the CMS/NCHS Official 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 16: Certain Conditions Originating in the Perinatal Period (P00-P96)

d. Prematurity and Fetal Growth Retardation Providers utilize different criteria in determining prematurity. A code for prematurity should not be assigned unless it is documented. Assignment of codes in categories P05, Disorders of newborn related to slow fetal growth and fetal malnutrition, and P07, Disorders of newborn related to short gestation and low birth weight, not elsewhere classified, should be based on the recorded birth weight and estimated gestational age.

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 P05.2 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 2 Excludes1 notes: P07.0 — Extremely low birth weight newborn (via P05.-), P07.1 — Other low birth weight newborn (via P05.-).

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.

Not on the CMS CC/MCC list — as a secondary diagnosis this code does not change MS-DRG severity.

Named in the grouper logic of 2 MS-DRGs: DRG 791 (MDC 15), DRG 793 (MDC 15).

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

Clinical classification (AHRQ CCSR):PNL002 — Short gestation; low birth weight; and fetal growth retardation (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 (Short gestation; low birth weight; and fetal growth retardation).

P05.10 — Newborn small for gestational age, unspecified weight, P05.11 — Newborn small for gestational age, less than 500 grams, P05.12 — Newborn small for gestational age, 500-749 grams, P05.13 — Newborn small for gestational age, 750-999 grams, P05.14 — Newborn small for gestational age, 1000-1249 grams, P05.15 — Newborn small for gestational age, 1250-1499 grams, P05.16 — Newborn small for gestational age, 1500-1749 grams, P05.17 — Newborn small for gestational age, 1750-1999 grams, P05.18 — Newborn small for gestational age, 2000-2499 grams, P05.19 — Newborn small for gestational age, other, P05.9 — Newborn affected by slow intrauterine growth, unspecified, P07.00 — Extremely low birth weight newborn, unspecified weight, P07.01 — Extremely low birth weight newborn, less than 500 grams, P07.02 — Extremely low birth weight newborn, 500-749 grams, P07.03 — Extremely low birth weight newborn, 750-999 grams, P07.10 — Other low birth weight newborn, unspecified weight, P07.14 — Other low birth weight newborn, 1000-1249 grams, P07.15 — Other low birth weight newborn, 1250-1499 grams, P07.16 — Other low birth weight newborn, 1500-1749 grams, P07.17 — Other low birth weight newborn, 1750-1999 grams, +28 more

Same Index main term, other category

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

P04.3 — Newborn affected by maternal use of alcohol (affected by, maternal, alcohol), P04.40 — Newborn affected by maternal use of unspecified drugs of addiction (affected by, drugs of addiction), P04.41 — Newborn affected by maternal use of cocaine (affected by, cocaine), P04.42 — Newborn affected by maternal use of hallucinogens (affected by, drugs of addiction, hallucinogens), P04.49 — Newborn affected by maternal use of other drugs of addiction (affected by, methamphetamine), P04.5 — Newborn affected by maternal use of nutritional chemical substances (affected by, nutritional supplements), P04.6 — Newborn affected by maternal exposure to environmental chemical substances (affected by, environmental chemicals), P04.81 — Newborn affected by maternal use of cannabis (affected by, maternal, cannabis), P04.89 — Newborn affected by other maternal noxious substances (affected by, noxious substances transmitted via placenta or breast milk, specified NEC), P04.9 — Newborn affected by maternal noxious substance, unspecified (affected by, noxious substances transmitted via placenta or breast milk), P08.21 — Post-term newborn (post-term), P08.22 — Prolonged gestation of newborn (prolonged gestation), P28.2 — Cyanotic attacks of newborn (affected by, cyanosis), P28.30 — Primary sleep apnea of newborn, unspecified (apnea, sleep), P28.40 — Unspecified apnea of newborn (apnea), P28.42 — Obstructive apnea of newborn (apnea, obstructive), P28.81 — Respiratory arrest of newborn (affected by, respiratory arrest), P29.11 — Neonatal tachycardia (affected by, heart rate abnormalities, tachycardia), P29.12 — Neonatal bradycardia (affected by, heart rate abnormalities, bradycardia), P29.81 — Cardiac arrest of newborn (affected by, cardiac arrest), +147 more

Contextual Map

Every relationship of P05.2 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 P05.2 with these 4 related codes in Claim Check

Hierarchy

Excludes1

Referenced by Excludes1 notes

Clinical classification (CCSR)

MS-DRG Grouper

MDC crossing

Index entries

  • Newborn (infant) (liveborn) (singleton), affected by, fetal (intrauterine), malnutrition not light or small for gestational age[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026

Nearest codes (24)

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
Coding guidelines Official source data
ICD-10-CM Official Guidelines for Coding and Reporting (FY2026), quoted by section 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

Change history

  • FY2016 — October 1, 2015
    In the code set at ICD-10-CM adoption
    Newborn affected by fetal (intrauterine) malnutrition not light or small for gestational age

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 P05.2 in its code family, with their registry titles.

View all codes in the P05 family