ICD-10 · PDGM grouping
O44 Placenta previa
All 24 codes in the O44 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
24
Can lead a claim
18
Cannot lead a claim
6
What CMS assigns to O44
18 of the 24 codes group to MMTA - Other; 6 are assigned no clinical group. None of the 24 is assigned a comorbidity subgroup. 18 of the 24 can lead a claim.
Every code in O44
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 |
|---|---|---|---|---|
| O44.0 Complete placenta previa NOS or without hemorrhage | ||||
| O44.00 | Complete placenta previa NOS or without hemorrhage, unspecified trimesterCMS: Complete placenta previa NOS or without hemor, unsp tri | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| O44.01 | Complete placenta previa NOS or without hemorrhage, first trimesterCMS: Complete placenta previa NOS or without hemor, first tri | Can lead a claim | A | None |
| O44.02 | Complete placenta previa NOS or without hemorrhage, second trimesterCMS: Complete placenta previa NOS or without hemor, second tri | Can lead a claim | A | None |
| O44.03 | Complete placenta previa NOS or without hemorrhage, third trimesterCMS: Complete placenta previa NOS or without hemor, third tri | Can lead a claim | A | None |
| O44.1 Complete placenta previa with hemorrhage | ||||
| O44.10 | Complete placenta previa with hemorrhage, unspecified trimesterCMS: Complete placenta previa with hemorrhage, unsp trimester | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| O44.11 | Complete placenta previa with hemorrhage, first trimester | Can lead a claim | A | None |
| O44.12 | Complete placenta previa with hemorrhage, second trimester | Can lead a claim | A | None |
| O44.13 | Complete placenta previa with hemorrhage, third trimester | Can lead a claim | A | None |
| O44.2 Partial placenta previa without hemorrhage | ||||
| O44.20 | Partial placenta previa NOS or without hemorrhage, unspecified trimesterCMS: Partial placenta previa NOS or without hemor, unsp trimester | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| O44.21 | Partial placenta previa NOS or without hemorrhage, first trimesterCMS: Partial placenta previa NOS or without hemor, first tri | Can lead a claim | A | None |
| O44.22 | Partial placenta previa NOS or without hemorrhage, second trimesterCMS: Partial placenta previa NOS or without hemor, second tri | Can lead a claim | A | None |
| O44.23 | Partial placenta previa NOS or without hemorrhage, third trimesterCMS: Partial placenta previa NOS or without hemor, third tri | Can lead a claim | A | None |
| O44.3 Partial placenta previa with hemorrhage | ||||
| O44.30 | Partial placenta previa with hemorrhage, unspecified trimesterCMS: Partial placenta previa with hemorrhage, unsp trimester | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| O44.31 | Partial placenta previa with hemorrhage, first trimester | Can lead a claim | A | None |
| O44.32 | Partial placenta previa with hemorrhage, second trimester | Can lead a claim | A | None |
| O44.33 | Partial placenta previa with hemorrhage, third trimester | Can lead a claim | A | None |
| O44.4 Low lying placenta NOS or without hemorrhage | ||||
| O44.40 | Low lying placenta NOS or without hemorrhage, unspecified trimesterCMS: Low lying placenta NOS or without hemorrhage, unsp trimester | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| O44.41 | Low lying placenta NOS or without hemorrhage, first trimesterCMS: Low lying placenta NOS or without hemor, first trimester | Can lead a claim | A | None |
| O44.42 | Low lying placenta NOS or without hemorrhage, second trimesterCMS: Low lying placenta NOS or without hemor, second trimester | Can lead a claim | A | None |
| O44.43 | Low lying placenta NOS or without hemorrhage, third trimesterCMS: Low lying placenta NOS or without hemor, third trimester | Can lead a claim | A | None |
| O44.5 Low lying placenta with hemorrhage | ||||
| O44.50 | Low lying placenta with hemorrhage, unspecified trimester | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| O44.51 | Low lying placenta with hemorrhage, first trimester | Can lead a claim | A | None |
| O44.52 | Low lying placenta with hemorrhage, second trimester | Can lead a claim | A | None |
| O44.53 | Low lying placenta with hemorrhage, third trimester | Can lead a claim | A | 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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