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

P28 Other respiratory conditions originating in the perinatal period

All 19 codes in the P28 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

19

Can lead a claim

18

Cannot lead a claim

1

What CMS assigns to P28

18 of the 19 codes group to MMTA - Other; 1 is assigned no clinical group. None of the 19 is assigned a comorbidity subgroup. 18 of the 19 can lead a claim.

Every code in P28

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

CodeDescriptionPrimary positionClinical groupComorbidity subgroup
P28.0Primary atelectasis of newbornCan lead a claimANone
P28.1 Other and unspecified atelectasis of newborn
P28.10Unspecified atelectasis of newbornCan lead a claimANone
P28.11Resorption atelectasis without respiratory distress syndromeCan lead a claimANone
P28.19Other atelectasis of newbornCan lead a claimANone
P28.2Cyanotic attacks of newbornCan lead a claimANone
P28.3 Primary sleep apnea of newborn
P28.30Primary sleep apnea of newborn, unspecifiedCan lead a claimANone
P28.31Primary central sleep apnea of newbornCan lead a claimANone
P28.32Primary obstructive sleep apnea of newbornCan lead a claimANone
P28.33Primary mixed sleep apnea of newbornCan lead a claimANone
P28.39Other primary sleep apnea of newbornCan lead a claimANone
P28.4 Other apnea of newborn
P28.40Unspecified apnea of newbornCan lead a claimANone
P28.41Central neonatal apnea of newbornCan lead a claimANone
P28.42Obstructive apnea of newbornCan lead a claimANone
P28.43Mixed neonatal apnea of newbornCan lead a claimANone
P28.49Other apnea of newbornCan lead a claimANone
P28.5Respiratory failure of newbornCan lead a claimANone
P28.8 Other specified respiratory conditions of newborn
P28.81Respiratory arrest of newbornCan lead a claimANone
P28.89Other specified respiratory conditions of newbornCan lead a claimANone
P28.9Respiratory condition of newborn, unspecifiedCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone

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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