ICD-10 · PDGM grouping
O77 Other fetal stress complicating labor and delivery
All 4 codes in the O77 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.
Codes in family
4
Can lead a claim
3
Cannot lead a claim
1
What CMS assigns to O77
3 of the 4 codes group to MMTA - Other; 1 is assigned no clinical group. None of the 4 is assigned a comorbidity subgroup. 3 of the 4 can lead a claim.
Every code in O77
Descriptions are CDC’s FY2027 wording; where CMS’s grouper abbreviates one, its form is shown beneath.
| Code | Description | Primary position | Clinical group | Comorbidity subgroup |
|---|---|---|---|---|
| O77.0 | Labor and delivery complicated by meconium in amniotic fluid | Can lead a claim | A | None |
| O77.1 | Fetal stress in labor or delivery due to drug administration | Can lead a claim | A | None |
| O77.8 | Labor and delivery complicated by other evidence of fetal stressCMS: Labor and delivery comp by oth evidence of fetal stress | Can lead a claim | A | None |
| O77.9 | Labor and delivery complicated by fetal stress, unspecified | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
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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