ICD-10 · PDGM grouping
H91 Other and unspecified hearing loss
All 21 codes in the H91 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
21
Can lead a claim
16
Cannot lead a claim
5
What CMS assigns to H91
16 of the 21 codes group to MMTA - Other; 5 are assigned no clinical group. None of the 21 is assigned a comorbidity subgroup. 16 of the 21 can lead a claim. CMS attaches a code-first note to 4 of the 21.
Code first
CMS grouper convention 13, on H91.01, H91.02, H91.03, H91.09. Code first:
- poisoning due to drug or toxin, if applicable (T36-T65 with fifth or sixth character 1-4)
Every code in H91
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 |
|---|---|---|---|---|
| H91.0 Ototoxic hearing loss | ||||
| H91.01 | Ototoxic hearing loss, right ear | Can lead a claim, code first applies | A | None |
| H91.02 | Ototoxic hearing loss, left ear | Can lead a claim, code first applies | A | None |
| H91.03 | Ototoxic hearing loss, bilateral | Can lead a claim, code first applies | A | None |
| H91.09 | Ototoxic hearing loss, unspecified ear | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| H91.1 Presbycusis | ||||
| H91.10 | Presbycusis, unspecified ear | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| H91.11 | Presbycusis, right ear | Can lead a claim | A | None |
| H91.12 | Presbycusis, left ear | Can lead a claim | A | None |
| H91.13 | Presbycusis, bilateral | Can lead a claim | A | None |
| H91.2 Sudden idiopathic hearing loss | ||||
| H91.20 | Sudden idiopathic hearing loss, unspecified ear | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| H91.21 | Sudden idiopathic hearing loss, right ear | Can lead a claim | A | None |
| H91.22 | Sudden idiopathic hearing loss, left ear | Can lead a claim | A | None |
| H91.23 | Sudden idiopathic hearing loss, bilateral | Can lead a claim | A | None |
| H91.3 | Deaf nonspeaking, not elsewhere classified | Can lead a claim | A | None |
| H91.8 Other specified hearing loss | ||||
| H91.8X Other specified hearing loss | ||||
| H91.8X1 | Other specified hearing loss, right ear | Can lead a claim | A | None |
| H91.8X2 | Other specified hearing loss, left ear | Can lead a claim | A | None |
| H91.8X3 | Other specified hearing loss, bilateral | Can lead a claim | A | None |
| H91.8X9 | Other specified hearing loss, unspecified ear | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| H91.9 Unspecified hearing loss | ||||
| H91.90 | Unspecified hearing loss, unspecified ear | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| H91.91 | Unspecified hearing loss, right ear | Can lead a claim | A | None |
| H91.92 | Unspecified hearing loss, left ear | Can lead a claim | A | None |
| H91.93 | Unspecified hearing loss, bilateral | 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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