ICD-10 · PDGM grouping
R22 Localized swelling, mass and lump of skin and subcutaneous tissue
All 12 codes in the R22 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
12
Can lead a claim
0
Cannot lead a claim
12
What CMS assigns to R22
None of the 12 codes is assigned a clinical group. None of the 12 is assigned a comorbidity subgroup. None can lead a claim.
Every code in R22
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 |
|---|---|---|---|---|
| R22.0 | Localized swelling, mass and lump, head | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| R22.1 | Localized swelling, mass and lump, neck | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| R22.2 | Localized swelling, mass and lump, trunk | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| R22.3 Localized swelling, mass and lump, upper limb | ||||
| R22.30 | Localized swelling, mass and lump, unspecified upper limb | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| R22.31 | Localized swelling, mass and lump, right upper limb | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| R22.32 | Localized swelling, mass and lump, left upper limb | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| R22.33 | Localized swelling, mass and lump, upper limb, bilateral | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| R22.4 Localized swelling, mass and lump, lower limb | ||||
| R22.40 | Localized swelling, mass and lump, unspecified lower limb | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| R22.41 | Localized swelling, mass and lump, right lower limb | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| R22.42 | Localized swelling, mass and lump, left lower limb | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| R22.43 | Localized swelling, mass and lump, lower limb, bilateral | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| R22.9 | Localized swelling, mass and lump, 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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