ICD-10 · PDGM grouping
G94 Other disorders of brain in diseases classified elsewhere
The one code in the G94 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
1
Can lead a claim
0
Cannot lead a claim
1
What CMS assigns to G94
This code is assigned no clinical group. It counts toward the Alzheimer’s disease and related dementias comorbidity subgroup. It cannot lead a claim. CMS attaches a code-first note to it.
- Alzheimer’s disease and related dementias: counts toward the high comorbidity tier only in an interaction pair.
Code first
CMS grouper convention 12. Code first:
- underlying disease
The G94 code
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 |
|---|---|---|---|---|
| G94 | Other disorders of brain in diseases classified elsewhere | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | Alzheimer’s disease and related dementias |
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.
The monthly home health regs digest
What CMS changed, what's due next, and what to do about it — one email a month, no fluff. Read the first issue