October 1 update. Our PDGM and ICD-10 tools now use the FY2027 code set: 190 codes added, 30 deleted, and no existing code changed clinical group.

See what changed

ICD-10 · PDGM grouping

P05 Disorders of newborn related to slow fetal growth and fetal malnutrition

All 22 codes in the P05 family, with the PDGM clinical group, comorbidity subgroup and primary-position rule CMS assigns, read from the CMS grouper crosswalk v07.2.26 and the CDC FY2027 code file.

ICD-10-CM FY2027 · CMS grouper v07.2.26

Codes in family

22

Can lead a claim

20

Cannot lead a claim

2

What CMS assigns to P05

20 of the 22 codes group to MMTA - Other; 2 are assigned no clinical group. None of the 22 is assigned a comorbidity subgroup. 20 of the 22 can lead a claim.

Every code in P05

Descriptions are CDC’s FY2027 wording; where CMS’s grouper abbreviates one, its form is shown beneath.

CodeDescriptionPrimary positionClinical groupComorbidity subgroup
P05.0 Newborn light for gestational age
P05.00Newborn light for gestational age, unspecified weightCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
P05.01Newborn light for gestational age, less than 500 gramsCan lead a claimANone
P05.02Newborn light for gestational age, 500-749 gramsCan lead a claimANone
P05.03Newborn light for gestational age, 750-999 gramsCan lead a claimANone
P05.04Newborn light for gestational age, 1000-1249 gramsCan lead a claimANone
P05.05Newborn light for gestational age, 1250-1499 gramsCan lead a claimANone
P05.06Newborn light for gestational age, 1500-1749 gramsCan lead a claimANone
P05.07Newborn light for gestational age, 1750-1999 gramsCan lead a claimANone
P05.08Newborn light for gestational age, 2000-2499 gramsCan lead a claimANone
P05.09Newborn light for gestational age, 2500 grams and overCan lead a claimANone
P05.1 Newborn small for gestational age
P05.10Newborn small for gestational age, unspecified weightCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
P05.11Newborn small for gestational age, less than 500 gramsCan lead a claimANone
P05.12Newborn small for gestational age, 500-749 gramsCan lead a claimANone
P05.13Newborn small for gestational age, 750-999 gramsCan lead a claimANone
P05.14Newborn small for gestational age, 1000-1249 gramsCan lead a claimANone
P05.15Newborn small for gestational age, 1250-1499 gramsCan lead a claimANone
P05.16Newborn small for gestational age, 1500-1749 gramsCan lead a claimANone
P05.17Newborn small for gestational age, 1750-1999 gramsCan lead a claimANone
P05.18Newborn small for gestational age, 2000-2499 gramsCan lead a claimANone
P05.19Newborn small for gestational age, otherCan lead a claimANone
P05.2Newborn affected by fetal (intrauterine) malnutrition not light or small for gestational ageCMS: NB aff by fetal malnut not light or small for gestatnl ageCan lead a claimANone
P05.9Newborn affected by slow intrauterine growth, unspecifiedCan lead a claimANone

Sources: CMS HH PPS Grouper Software v07.2.26, effective 2026-10-01, for the clinical group, comorbidity subgroup, code-first conventions and primary-position flags; CDC NCHS ICD-10-CM FY2027 code descriptions for the family title and code wording. This is the crosswalk Medicare runs a claim through. Grouping also depends on admission source, timing, the OASIS functional items and the rest of the diagnosis list.

The monthly home health regs digest

What CMS changed, what's due next, and what to do about it — one email a month, no fluff. Read the first issue