ICD-10 · PDGM grouping
R33 Retention of urine
All 3 codes in the R33 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
3
Can lead a claim
0
Cannot lead a claim
3
What CMS assigns to R33
None of the 3 codes is assigned a clinical group. None of the 3 is assigned a comorbidity subgroup. None can lead a claim. CMS attaches a code-first note to 1 of the 3.
Code first
CMS grouper convention 135, on R33.8. Code first:
- , if applicable, any causal condition, such as:
- enlarged prostate (N40.1)
Every code in R33
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 |
|---|---|---|---|---|
| R33.0 | Drug induced retention of urine | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| R33.8 | Other retention of urine | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| R33.9 | Retention of urine, 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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