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

O90 Complications of the puerperium, not elsewhere classified

All 11 codes in the O90 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

11

Can lead a claim

11

Cannot lead a claim

0

What CMS assigns to O90

All 11 codes group to MMTA - Other. None of the 11 is assigned a comorbidity subgroup. Every code can lead a claim.

Every code in O90

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

CodeDescriptionPrimary positionClinical groupComorbidity subgroup
O90.0Disruption of cesarean delivery woundCan lead a claimANone
O90.1Disruption of perineal obstetric woundCan lead a claimANone
O90.2Hematoma of obstetric woundCan lead a claimANone
O90.3Peripartum cardiomyopathyCan lead a claimANone
O90.4 Postpartum acute kidney failure
O90.41Hepatorenal syndrome following labor and deliveryCan lead a claimANone
O90.49Other postpartum acute kidney failureCan lead a claimANone
O90.5Postpartum thyroiditisCan lead a claimANone
O90.6Postpartum mood disturbanceCan lead a claimANone
O90.8 Other complications of the puerperium, not elsewhere classified
O90.81Anemia of the puerperiumCan lead a claimANone
O90.89Other complications of the puerperium, not elsewhere classifiedCMS: Oth complications of the puerperium, NECCan lead a claimANone
O90.9Complication of the puerperium, 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.

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