ICD-10 · PDGM grouping
H33 Retinal detachments and breaks
All 65 codes in the H33 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
65
Can lead a claim
49
Cannot lead a claim
16
What CMS assigns to H33
49 of the 65 codes group to MMTA - Other; 16 are assigned no clinical group. None of the 65 is assigned a comorbidity subgroup. 49 of the 65 can lead a claim.
Every code in H33
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 |
|---|---|---|---|---|
| H33.0 Retinal detachment with retinal break | ||||
| H33.00 Unspecified retinal detachment with retinal break | ||||
| H33.001 | Unspecified retinal detachment with retinal break, right eye | Can lead a claim | A | None |
| H33.002 | Unspecified retinal detachment with retinal break, left eye | Can lead a claim | A | None |
| H33.003 | Unspecified retinal detachment with retinal break, bilateral | Can lead a claim | A | None |
| H33.009 | Unspecified retinal detachment with retinal break, unspecified eyeCMS: Unsp retinal detachment with retinal break, unspecified eye | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| H33.01 Retinal detachment with single break | ||||
| H33.011 | Retinal detachment with single break, right eye | Can lead a claim | A | None |
| H33.012 | Retinal detachment with single break, left eye | Can lead a claim | A | None |
| H33.013 | Retinal detachment with single break, bilateral | Can lead a claim | A | None |
| H33.019 | Retinal detachment with single break, unspecified eye | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| H33.02 Retinal detachment with multiple breaks | ||||
| H33.021 | Retinal detachment with multiple breaks, right eye | Can lead a claim | A | None |
| H33.022 | Retinal detachment with multiple breaks, left eye | Can lead a claim | A | None |
| H33.023 | Retinal detachment with multiple breaks, bilateral | Can lead a claim | A | None |
| H33.029 | Retinal detachment with multiple breaks, unspecified eye | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| H33.03 Retinal detachment with giant retinal tear | ||||
| H33.031 | Retinal detachment with giant retinal tear, right eye | Can lead a claim | A | None |
| H33.032 | Retinal detachment with giant retinal tear, left eye | Can lead a claim | A | None |
| H33.033 | Retinal detachment with giant retinal tear, bilateral | Can lead a claim | A | None |
| H33.039 | Retinal detachment with giant retinal tear, unspecified eye | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| H33.04 Retinal detachment with retinal dialysis | ||||
| H33.041 | Retinal detachment with retinal dialysis, right eye | Can lead a claim | A | None |
| H33.042 | Retinal detachment with retinal dialysis, left eye | Can lead a claim | A | None |
| H33.043 | Retinal detachment with retinal dialysis, bilateral | Can lead a claim | A | None |
| H33.049 | Retinal detachment with retinal dialysis, unspecified eye | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| H33.05 Total retinal detachment | ||||
| H33.051 | Total retinal detachment, right eye | Can lead a claim | A | None |
| H33.052 | Total retinal detachment, left eye | Can lead a claim | A | None |
| H33.053 | Total retinal detachment, bilateral | Can lead a claim | A | None |
| H33.059 | Total retinal detachment, unspecified eye | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| H33.1 Retinoschisis and retinal cysts | ||||
| H33.10 Unspecified retinoschisis | ||||
| H33.101 | Unspecified retinoschisis, right eye | Can lead a claim | A | None |
| H33.102 | Unspecified retinoschisis, left eye | Can lead a claim | A | None |
| H33.103 | Unspecified retinoschisis, bilateral | Can lead a claim | A | None |
| H33.109 | Unspecified retinoschisis, unspecified eye | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| H33.11 Cyst of ora serrata | ||||
| H33.111 | Cyst of ora serrata, right eye | Can lead a claim | A | None |
| H33.112 | Cyst of ora serrata, left eye | Can lead a claim | A | None |
| H33.113 | Cyst of ora serrata, bilateral | Can lead a claim | A | None |
| H33.119 | Cyst of ora serrata, unspecified eye | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| H33.12 Parasitic cyst of retina | ||||
| H33.121 | Parasitic cyst of retina, right eye | Can lead a claim | A | None |
| H33.122 | Parasitic cyst of retina, left eye | Can lead a claim | A | None |
| H33.123 | Parasitic cyst of retina, bilateral | Can lead a claim | A | None |
| H33.129 | Parasitic cyst of retina, 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 |
| H33.19 Other retinoschisis and retinal cysts | ||||
| H33.191 | Other retinoschisis and retinal cysts, right eye | Can lead a claim | A | None |
| H33.192 | Other retinoschisis and retinal cysts, left eye | Can lead a claim | A | None |
| H33.193 | Other retinoschisis and retinal cysts, bilateral | Can lead a claim | A | None |
| H33.199 | Other retinoschisis and retinal cysts, unspecified eye | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| H33.2 Serous retinal detachment | ||||
| H33.20 | Serous retinal 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 |
| H33.21 | Serous retinal detachment, right eye | Can lead a claim | A | None |
| H33.22 | Serous retinal detachment, left eye | Can lead a claim | A | None |
| H33.23 | Serous retinal detachment, bilateral | Can lead a claim | A | None |
| H33.3 Retinal breaks without detachment | ||||
| H33.30 Unspecified retinal break | ||||
| H33.301 | Unspecified retinal break, right eye | Can lead a claim | A | None |
| H33.302 | Unspecified retinal break, left eye | Can lead a claim | A | None |
| H33.303 | Unspecified retinal break, bilateral | Can lead a claim | A | None |
| H33.309 | Unspecified retinal break, unspecified eye | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| H33.31 Horseshoe tear of retina without detachment | ||||
| H33.311 | Horseshoe tear of retina without detachment, right eye | Can lead a claim | A | None |
| H33.312 | Horseshoe tear of retina without detachment, left eye | Can lead a claim | A | None |
| H33.313 | Horseshoe tear of retina without detachment, bilateral | Can lead a claim | A | None |
| H33.319 | Horseshoe tear of retina without detachment, unspecified eye | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| H33.32 Round hole of retina without detachment | ||||
| H33.321 | Round hole, right eye | Can lead a claim | A | None |
| H33.322 | Round hole, left eye | Can lead a claim | A | None |
| H33.323 | Round hole, bilateral | Can lead a claim | A | None |
| H33.329 | Round hole, unspecified eye | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| H33.33 Multiple defects of retina without detachment | ||||
| H33.331 | Multiple defects of retina without detachment, right eye | Can lead a claim | A | None |
| H33.332 | Multiple defects of retina without detachment, left eye | Can lead a claim | A | None |
| H33.333 | Multiple defects of retina without detachment, bilateral | Can lead a claim | A | None |
| H33.339 | Multiple defects of retina without detachment, unspecified eyeCMS: Multiple defects of retina without detachment, unsp eye | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| H33.4 Traction detachment of retina | ||||
| H33.40 | Traction detachment of retina, 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 |
| H33.41 | Traction detachment of retina, right eye | Can lead a claim | A | None |
| H33.42 | Traction detachment of retina, left eye | Can lead a claim | A | None |
| H33.43 | Traction detachment of retina, bilateral | Can lead a claim | A | None |
| H33.8 | Other retinal detachments | 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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