ICD-10 · PDGM grouping
G61 Inflammatory polyneuropathy
All 6 codes in the G61 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
6
Can lead a claim
5
Cannot lead a claim
1
What CMS assigns to G61
5 of the 6 codes group to Neuro Rehabilitation; 1 is assigned no clinical group. 2 of the 6 count toward the Nondiabetic neuropathy comorbidity subgroup; 4 are assigned none. 5 of the 6 can lead a claim.
- Nondiabetic neuropathy: counts toward the high comorbidity tier only in an interaction pair.
Every code in G61
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 |
|---|---|---|---|---|
| G61.0 | Guillain-Barre syndrome | Can lead a claim | B | None |
| G61.1 | Serum neuropathy | Can lead a claim | B | Nondiabetic neuropathy |
| G61.8 Other inflammatory polyneuropathies | ||||
| G61.81 | Chronic inflammatory demyelinating polyneuritis | Can lead a claim | B | None |
| G61.82 | Multifocal motor neuropathy | Can lead a claim | B | Nondiabetic neuropathy |
| G61.89 | Other inflammatory polyneuropathies | Can lead a claim | B | None |
| G61.9 | Inflammatory polyneuropathy, 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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