ICD-10 · PDGM grouping
H31 Other disorders of choroid
All 59 codes in the H31 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.
ICD-10-CM FY2027 · CMS grouper v07.2.26
Codes in family
59
Can lead a claim
45
Cannot lead a claim
14
What CMS assigns to H31
45 of the 59 codes group to MMTA - Other; 14 are assigned no clinical group. None of the 59 is assigned a comorbidity subgroup. 45 of the 59 can lead a claim.
Every code in H31
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 |
|---|---|---|---|---|
| H31.0 Chorioretinal scars | ||||
| H31.00 Unspecified chorioretinal scars | ||||
| H31.001 | Unspecified chorioretinal scars, right eye | Can lead a claim | A | None |
| H31.002 | Unspecified chorioretinal scars, left eye | Can lead a claim | A | None |
| H31.003 | Unspecified chorioretinal scars, bilateral | Can lead a claim | A | None |
| H31.009 | Unspecified chorioretinal scars, unspecified eye | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| H31.01 Macula scars of posterior pole (postinflammatory) (post-traumatic) | ||||
| H31.011 | Macula scars of posterior pole (postinflammatory) (post-traumatic), right eyeCMS: Macula scars of posterior pole (post-traumatic), right eye | Can lead a claim | A | None |
| H31.012 | Macula scars of posterior pole (postinflammatory) (post-traumatic), left eyeCMS: Macula scars of posterior pole (post-traumatic), left eye | Can lead a claim | A | None |
| H31.013 | Macula scars of posterior pole (postinflammatory) (post-traumatic), bilateralCMS: Macula scars of posterior pole (post-traumatic), bilateral | Can lead a claim | A | None |
| H31.019 | Macula scars of posterior pole (postinflammatory) (post-traumatic), unspecified eyeCMS: Macula scars of posterior pole (post-traumatic), unsp eye | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| H31.02 Solar retinopathy | ||||
| H31.021 | Solar retinopathy, right eye | Can lead a claim | A | None |
| H31.022 | Solar retinopathy, left eye | Can lead a claim | A | None |
| H31.023 | Solar retinopathy, bilateral | Can lead a claim | A | None |
| H31.029 | Solar retinopathy, unspecified eye | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| H31.09 Other chorioretinal scars | ||||
| H31.091 | Other chorioretinal scars, right eye | Can lead a claim | A | None |
| H31.092 | Other chorioretinal scars, left eye | Can lead a claim | A | None |
| H31.093 | Other chorioretinal scars, bilateral | Can lead a claim | A | None |
| H31.099 | Other chorioretinal scars, unspecified eye | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| H31.1 Choroidal degeneration | ||||
| H31.10 Unspecified choroidal degeneration | ||||
| H31.101 | Choroidal degeneration, unspecified, right eye | Can lead a claim | A | None |
| H31.102 | Choroidal degeneration, unspecified, left eye | Can lead a claim | A | None |
| H31.103 | Choroidal degeneration, unspecified, bilateral | Can lead a claim | A | None |
| H31.109 | Choroidal degeneration, unspecified, unspecified eye | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| H31.11 Age-related choroidal atrophy | ||||
| H31.111 | Age-related choroidal atrophy, right eye | Can lead a claim | A | None |
| H31.112 | Age-related choroidal atrophy, left eye | Can lead a claim | A | None |
| H31.113 | Age-related choroidal atrophy, bilateral | Can lead a claim | A | None |
| H31.119 | Age-related choroidal atrophy, unspecified eye | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| H31.12 Diffuse secondary atrophy of choroid | ||||
| H31.121 | Diffuse secondary atrophy of choroid, right eye | Can lead a claim | A | None |
| H31.122 | Diffuse secondary atrophy of choroid, left eye | Can lead a claim | A | None |
| H31.123 | Diffuse secondary atrophy of choroid, bilateral | Can lead a claim | A | None |
| H31.129 | Diffuse secondary atrophy of choroid, unspecified eye | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| H31.2 Hereditary choroidal dystrophy | ||||
| H31.20 | Hereditary choroidal dystrophy, unspecified | Can lead a claim | A | None |
| H31.21 | Choroideremia | Can lead a claim | A | None |
| H31.22 | Choroidal dystrophy (central areolar) (generalized) (peripapillary)CMS: Choroidal dystrophy (central areolar) (peripapillary) | Can lead a claim | A | None |
| H31.23 | Gyrate atrophy, choroid | Can lead a claim | A | None |
| H31.29 | Other hereditary choroidal dystrophy | Can lead a claim | A | None |
| H31.3 Choroidal hemorrhage and rupture | ||||
| H31.30 Unspecified choroidal hemorrhage | ||||
| H31.301 | Unspecified choroidal hemorrhage, right eye | Can lead a claim | A | None |
| H31.302 | Unspecified choroidal hemorrhage, left eye | Can lead a claim | A | None |
| H31.303 | Unspecified choroidal hemorrhage, bilateral | Can lead a claim | A | None |
| H31.309 | Unspecified choroidal hemorrhage, unspecified eye | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| H31.31 Expulsive choroidal hemorrhage | ||||
| H31.311 | Expulsive choroidal hemorrhage, right eye | Can lead a claim | A | None |
| H31.312 | Expulsive choroidal hemorrhage, left eye | Can lead a claim | A | None |
| H31.313 | Expulsive choroidal hemorrhage, bilateral | Can lead a claim | A | None |
| H31.319 | Expulsive choroidal hemorrhage, unspecified eye | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| H31.32 Choroidal rupture | ||||
| H31.321 | Choroidal rupture, right eye | Can lead a claim | A | None |
| H31.322 | Choroidal rupture, left eye | Can lead a claim | A | None |
| H31.323 | Choroidal rupture, bilateral | Can lead a claim | A | None |
| H31.329 | Choroidal rupture, unspecified eye | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| H31.4 Choroidal detachment | ||||
| H31.40 Unspecified choroidal detachment | ||||
| H31.401 | Unspecified choroidal detachment, right eye | Can lead a claim | A | None |
| H31.402 | Unspecified choroidal detachment, left eye | Can lead a claim | A | None |
| H31.403 | Unspecified choroidal detachment, bilateral | Can lead a claim | A | None |
| H31.409 | Unspecified choroidal detachment, unspecified eye | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| H31.41 Hemorrhagic choroidal detachment | ||||
| H31.411 | Hemorrhagic choroidal detachment, right eye | Can lead a claim | A | None |
| H31.412 | Hemorrhagic choroidal detachment, left eye | Can lead a claim | A | None |
| H31.413 | Hemorrhagic choroidal detachment, bilateral | Can lead a claim | A | None |
| H31.419 | Hemorrhagic choroidal detachment, unspecified eye | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| H31.42 Serous choroidal detachment | ||||
| H31.421 | Serous choroidal detachment, right eye | Can lead a claim | A | None |
| H31.422 | Serous choroidal detachment, left eye | Can lead a claim | A | None |
| H31.423 | Serous choroidal detachment, bilateral | Can lead a claim | A | None |
| H31.429 | Serous choroidal detachment, unspecified eye | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| H31.8 | Other specified disorders of choroid | Can lead a claim | A | None |
| H31.9 | Unspecified disorder of choroid | 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.
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