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

P07 Disorders of newborn related to short gestation and low birth weight, not elsewhere classified

All 27 codes in the P07 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

27

Can lead a claim

23

Cannot lead a claim

4

What CMS assigns to P07

23 of the 27 codes group to MMTA - Other; 4 are assigned no clinical group. None of the 27 is assigned a comorbidity subgroup. 23 of the 27 can lead a claim.

Every code in P07

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

CodeDescriptionPrimary positionClinical groupComorbidity subgroup
P07.0 Extremely low birth weight newborn
P07.00Extremely low birth weight newborn, unspecified weightCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
P07.01Extremely low birth weight newborn, less than 500 gramsCan lead a claimANone
P07.02Extremely low birth weight newborn, 500-749 gramsCan lead a claimANone
P07.03Extremely low birth weight newborn, 750-999 gramsCan lead a claimANone
P07.1 Other low birth weight newborn
P07.10Other low birth weight newborn, unspecified weightCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
P07.14Other low birth weight newborn, 1000-1249 gramsCan lead a claimANone
P07.15Other low birth weight newborn, 1250-1499 gramsCan lead a claimANone
P07.16Other low birth weight newborn, 1500-1749 gramsCan lead a claimANone
P07.17Other low birth weight newborn, 1750-1999 gramsCan lead a claimANone
P07.18Other low birth weight newborn, 2000-2499 gramsCan lead a claimANone
P07.2 Extreme immaturity of newborn
P07.20Extreme immaturity of newborn, unspecified weeks of gestationCMS: Extreme immaturity of newborn, unsp weeks of gestationCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
P07.21Extreme immaturity of newborn, gestational age less than 23 completed weeksCMS: Extreme immaturity of NB, gestatnl age < 23 completed weeksCan lead a claimANone
P07.22Extreme immaturity of newborn, gestational age 23 completed weeksCMS: Extreme immaturity of NB, gestatnl age 23 completed weeksCan lead a claimANone
P07.23Extreme immaturity of newborn, gestational age 24 completed weeksCMS: Extreme immaturity of NB, gestatnl age 24 completed weeksCan lead a claimANone
P07.24Extreme immaturity of newborn, gestational age 25 completed weeksCMS: Extreme immaturity of NB, gestatnl age 25 completed weeksCan lead a claimANone
P07.25Extreme immaturity of newborn, gestational age 26 completed weeksCMS: Extreme immaturity of NB, gestatnl age 26 completed weeksCan lead a claimANone
P07.26Extreme immaturity of newborn, gestational age 27 completed weeksCMS: Extreme immaturity of NB, gestatnl age 27 completed weeksCan lead a claimANone
P07.3 Preterm [premature] newborn [other]
P07.30Preterm newborn, unspecified weeks of gestationCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
P07.31Preterm newborn, gestational age 28 completed weeksCan lead a claimANone
P07.32Preterm newborn, gestational age 29 completed weeksCan lead a claimANone
P07.33Preterm newborn, gestational age 30 completed weeksCan lead a claimANone
P07.34Preterm newborn, gestational age 31 completed weeksCan lead a claimANone
P07.35Preterm newborn, gestational age 32 completed weeksCan lead a claimANone
P07.36Preterm newborn, gestational age 33 completed weeksCan lead a claimANone
P07.37Preterm newborn, gestational age 34 completed weeksCan lead a claimANone
P07.38Preterm newborn, gestational age 35 completed weeksCan lead a claimANone
P07.39Preterm newborn, gestational age 36 completed weeksCan 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.

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