ICD-10 · PDGM grouping
T26 Burn and corrosion confined to eye and adnexa
All 90 codes in the T26 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
90
Can lead a claim
24
Cannot lead a claim
66
What CMS assigns to T26
24 of the 90 codes group to MMTA - Other; 66 are assigned no clinical group. None of the 90 is assigned a comorbidity subgroup. 24 of the 90 can lead a claim. CMS attaches a code-first note to 45 of the 90.
Code first
CMS grouper convention 8, on T26.50XA, T26.50XD, T26.50XS, T26.51XA, T26.51XD, T26.51XS, T26.52XA, T26.52XD, T26.52XS, T26.60XA, T26.60XD, T26.60XS, T26.61XA, T26.61XD, T26.61XS, T26.62XA, T26.62XD, T26.62XS, T26.70XA, T26.70XD, T26.70XS, T26.71XA, T26.71XD, T26.71XS, T26.72XA, T26.72XD, T26.72XS, T26.80XA, T26.80XD, T26.80XS, T26.81XA, T26.81XD, T26.81XS, T26.82XA, T26.82XD, T26.82XS, T26.90XA, T26.90XD, T26.90XS, T26.91XA, T26.91XD, T26.91XS, T26.92XA, T26.92XD, T26.92XS. Code first:
- , if applicable, toxic effects of substances chiefly nonmedicinal as to source (T51-T65)
Every code in T26
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 |
|---|---|---|---|---|
| T26.0 Burn of eyelid and periocular area | ||||
| T26.00 Burn of unspecified eyelid and periocular area | ||||
| T26.00XA | Burn of unspecified eyelid and periocular area, initial encounterCMS: Burn of unspecified eyelid and periocular area, init encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.00XD | Burn of unspecified eyelid and periocular area, subsequent encounterCMS: Burn of unspecified eyelid and periocular area, subs encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.00XS | Burn of unspecified eyelid and periocular area, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.01 Burn of right eyelid and periocular area | ||||
| T26.01XA | Burn of right eyelid and periocular area, initial encounter | Can lead a claim | A | None |
| T26.01XD | Burn of right eyelid and periocular area, subsequent encounterCMS: Burn of right eyelid and periocular area, subs encntr | Can lead a claim | A | None |
| T26.01XS | Burn of right eyelid and periocular area, sequela | Can lead a claim | A | None |
| T26.02 Burn of left eyelid and periocular area | ||||
| T26.02XA | Burn of left eyelid and periocular area, initial encounter | Can lead a claim | A | None |
| T26.02XD | Burn of left eyelid and periocular area, subsequent encounterCMS: Burn of left eyelid and periocular area, subs encntr | Can lead a claim | A | None |
| T26.02XS | Burn of left eyelid and periocular area, sequela | Can lead a claim | A | None |
| T26.1 Burn of cornea and conjunctival sac | ||||
| T26.10 Burn of cornea and conjunctival sac, unspecified eye | ||||
| T26.10XA | Burn of cornea and conjunctival sac, unspecified eye, initial encounterCMS: Burn of cornea and conjunctival sac, unsp eye, init encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.10XD | Burn of cornea and conjunctival sac, unspecified eye, subsequent encounterCMS: Burn of cornea and conjunctival sac, unsp eye, subs encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.10XS | Burn of cornea and conjunctival sac, unspecified eye, sequelaCMS: Burn of cornea and conjunctival sac, unsp eye, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.11 Burn of cornea and conjunctival sac, right eye | ||||
| T26.11XA | Burn of cornea and conjunctival sac, right eye, initial encounterCMS: Burn of cornea and conjunctival sac, right eye, init encntr | Can lead a claim | A | None |
| T26.11XD | Burn of cornea and conjunctival sac, right eye, subsequent encounterCMS: Burn of cornea and conjunctival sac, right eye, subs encntr | Can lead a claim | A | None |
| T26.11XS | Burn of cornea and conjunctival sac, right eye, sequela | Can lead a claim | A | None |
| T26.12 Burn of cornea and conjunctival sac, left eye | ||||
| T26.12XA | Burn of cornea and conjunctival sac, left eye, initial encounterCMS: Burn of cornea and conjunctival sac, left eye, init encntr | Can lead a claim | A | None |
| T26.12XD | Burn of cornea and conjunctival sac, left eye, subsequent encounterCMS: Burn of cornea and conjunctival sac, left eye, subs encntr | Can lead a claim | A | None |
| T26.12XS | Burn of cornea and conjunctival sac, left eye, sequela | Can lead a claim | A | None |
| T26.2 Burn with resulting rupture and destruction of eyeball | ||||
| T26.20 Burn with resulting rupture and destruction of unspecified eyeball | ||||
| T26.20XA | Burn with resulting rupture and destruction of unspecified eyeball, initial encounterCMS: Burn w resulting rupture and dest of unsp eyeball, init | 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 |
| T26.20XD | Burn with resulting rupture and destruction of unspecified eyeball, subsequent encounterCMS: Burn w resulting rupture and dest of unsp eyeball, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.20XS | Burn with resulting rupture and destruction of unspecified eyeball, sequelaCMS: Burn w resulting rupture and dest of unsp eyeball, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.21 Burn with resulting rupture and destruction of right eyeball | ||||
| T26.21XA | Burn with resulting rupture and destruction of right eyeball, initial encounterCMS: Burn w resulting rupture and dest of right eyeball, init | Can lead a claim | A | None |
| T26.21XD | Burn with resulting rupture and destruction of right eyeball, subsequent encounterCMS: Burn w resulting rupture and dest of right eyeball, subs | Can lead a claim | A | None |
| T26.21XS | Burn with resulting rupture and destruction of right eyeball, sequelaCMS: Burn w resulting rupture and dest of right eyeball, sequela | Can lead a claim | A | None |
| T26.22 Burn with resulting rupture and destruction of left eyeball | ||||
| T26.22XA | Burn with resulting rupture and destruction of left eyeball, initial encounterCMS: Burn w resulting rupture and dest of left eyeball, init | Can lead a claim | A | None |
| T26.22XD | Burn with resulting rupture and destruction of left eyeball, subsequent encounterCMS: Burn w resulting rupture and dest of left eyeball, subs | Can lead a claim | A | None |
| T26.22XS | Burn with resulting rupture and destruction of left eyeball, sequelaCMS: Burn w resulting rupture and dest of left eyeball, sequela | Can lead a claim | A | None |
| T26.3 Burns of other specified parts of eye and adnexa | ||||
| T26.30 Burns of other specified parts of unspecified eye and adnexa | ||||
| T26.30XA | Burns of other specified parts of unspecified eye and adnexa, initial encounterCMS: Burns of oth parts of unsp eye and adnexa, init encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.30XD | Burns of other specified parts of unspecified eye and adnexa, subsequent encounterCMS: Burns of oth parts of unsp eye and adnexa, subs encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.30XS | Burns of other specified parts of unspecified eye and adnexa, sequelaCMS: Burns of oth parts of unspecified eye and adnexa, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.31 Burns of other specified parts of right eye and adnexa | ||||
| T26.31XA | Burns of other specified parts of right eye and adnexa, initial encounterCMS: Burns of oth parts of right eye and adnexa, init encntr | Can lead a claim | A | None |
| T26.31XD | Burns of other specified parts of right eye and adnexa, subsequent encounterCMS: Burns of oth parts of right eye and adnexa, subs encntr | Can lead a claim | A | None |
| T26.31XS | Burns of other specified parts of right eye and adnexa, sequelaCMS: Burns of oth parts of right eye and adnexa, sequela | Can lead a claim | A | None |
| T26.32 Burns of other specified parts of left eye and adnexa | ||||
| T26.32XA | Burns of other specified parts of left eye and adnexa, initial encounterCMS: Burns of oth parts of left eye and adnexa, init encntr | Can lead a claim | A | None |
| T26.32XD | Burns of other specified parts of left eye and adnexa, subsequent encounterCMS: Burns of oth parts of left eye and adnexa, subs encntr | Can lead a claim | A | None |
| T26.32XS | Burns of other specified parts of left eye and adnexa, sequelaCMS: Burns of oth parts of left eye and adnexa, sequela | Can lead a claim | A | None |
| T26.4 Burn of eye and adnexa, part unspecified | ||||
| T26.40 Burn of unspecified eye and adnexa, part unspecified | ||||
| T26.40XA | Burn of unspecified eye and adnexa, part unspecified, initial encounterCMS: Burn of unsp eye and adnexa, part unspecified, init encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.40XD | Burn of unspecified eye and adnexa, part unspecified, subsequent encounterCMS: Burn of unsp eye and adnexa, part unspecified, subs encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.40XS | Burn of unspecified eye and adnexa, part unspecified, sequelaCMS: Burn of unsp eye and adnexa, part unspecified, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.41 Burn of right eye and adnexa, part unspecified | ||||
| T26.41XA | Burn of right eye and adnexa, part unspecified, initial encounterCMS: Burn of right eye and adnexa, part unspecified, init encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.41XD | Burn of right eye and adnexa, part unspecified, subsequent encounterCMS: Burn of right eye and adnexa, part unspecified, subs encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.41XS | Burn of right eye and adnexa, part unspecified, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.42 Burn of left eye and adnexa, part unspecified | ||||
| T26.42XA | Burn of left eye and adnexa, part unspecified, initial encounterCMS: Burn of left eye and adnexa, part unspecified, init encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.42XD | Burn of left eye and adnexa, part unspecified, subsequent encounterCMS: Burn of left eye and adnexa, part unspecified, subs encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.42XS | Burn of left eye and adnexa, part unspecified, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.5 Corrosion of eyelid and periocular area | ||||
| T26.50 Corrosion of unspecified eyelid and periocular area | ||||
| T26.50XA | Corrosion of unspecified eyelid and periocular area, initial encounterCMS: Corrosion of unsp eyelid and periocular area, init encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.50XD | Corrosion of unspecified eyelid and periocular area, subsequent encounterCMS: Corrosion of unsp eyelid and periocular area, subs encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.50XS | Corrosion of unspecified eyelid and periocular area, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.51 Corrosion of right eyelid and periocular area | ||||
| T26.51XA | Corrosion of right eyelid and periocular area, initial encounterCMS: Corrosion of right eyelid and periocular area, init encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.51XD | Corrosion of right eyelid and periocular area, subsequent encounterCMS: Corrosion of right eyelid and periocular area, subs encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.51XS | Corrosion of right eyelid and periocular area, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.52 Corrosion of left eyelid and periocular area | ||||
| T26.52XA | Corrosion of left eyelid and periocular area, initial encounterCMS: Corrosion of left eyelid and periocular area, init encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.52XD | Corrosion of left eyelid and periocular area, subsequent encounterCMS: Corrosion of left eyelid and periocular area, subs encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.52XS | Corrosion of left eyelid and periocular area, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.6 Corrosion of cornea and conjunctival sac | ||||
| T26.60 Corrosion of cornea and conjunctival sac, unspecified eye | ||||
| T26.60XA | Corrosion of cornea and conjunctival sac, unspecified eye, initial encounterCMS: Corrosion of cornea and conjunctival sac, unsp eye, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.60XD | Corrosion of cornea and conjunctival sac, unspecified eye, subsequent encounterCMS: Corrosion of cornea and conjunctival sac, unsp eye, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.60XS | Corrosion of cornea and conjunctival sac, unspecified eye, sequelaCMS: Corrosion of cornea and conjunctival sac, unsp eye, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.61 Corrosion of cornea and conjunctival sac, right eye | ||||
| T26.61XA | Corrosion of cornea and conjunctival sac, right eye, initial encounterCMS: Corrosion of cornea and conjunctival sac, right eye, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.61XD | Corrosion of cornea and conjunctival sac, right eye, subsequent encounterCMS: Corrosion of cornea and conjunctival sac, right eye, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.61XS | Corrosion of cornea and conjunctival sac, right eye, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.62 Corrosion of cornea and conjunctival sac, left eye | ||||
| T26.62XA | Corrosion of cornea and conjunctival sac, left eye, initial encounterCMS: Corrosion of cornea and conjunctival sac, left eye, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.62XD | Corrosion of cornea and conjunctival sac, left eye, subsequent encounterCMS: Corrosion of cornea and conjunctival sac, left eye, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.62XS | Corrosion of cornea and conjunctival sac, left eye, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.7 Corrosion with resulting rupture and destruction of eyeball | ||||
| T26.70 Corrosion with resulting rupture and destruction of unspecified eyeball | ||||
| T26.70XA | Corrosion with resulting rupture and destruction of unspecified eyeball, initial encounterCMS: Corrosion w resulting rupture and dest of unsp eyeball, init | 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 |
| T26.70XD | Corrosion with resulting rupture and destruction of unspecified eyeball, subsequent encounterCMS: Corrosion w resulting rupture and dest of unsp eyeball, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.70XS | Corrosion with resulting rupture and destruction of unspecified eyeball, sequelaCMS: Corros w resulting rupture and dest of unsp eyeball, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.71 Corrosion with resulting rupture and destruction of right eyeball | ||||
| T26.71XA | Corrosion with resulting rupture and destruction of right eyeball, initial encounterCMS: Corros w resulting rupture and dest of right eyeball, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.71XD | Corrosion with resulting rupture and destruction of right eyeball, subsequent encounterCMS: Corros w resulting rupture and dest of right eyeball, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.71XS | Corrosion with resulting rupture and destruction of right eyeball, sequelaCMS: Corros w rslt rupture and dest of right eyeball, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.72 Corrosion with resulting rupture and destruction of left eyeball | ||||
| T26.72XA | Corrosion with resulting rupture and destruction of left eyeball, initial encounterCMS: Corrosion w resulting rupture and dest of left eyeball, init | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.72XD | Corrosion with resulting rupture and destruction of left eyeball, subsequent encounterCMS: Corrosion w resulting rupture and dest of left eyeball, subs | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.72XS | Corrosion with resulting rupture and destruction of left eyeball, sequelaCMS: Corros w resulting rupture and dest of left eyeball, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.8 Corrosions of other specified parts of eye and adnexa | ||||
| T26.80 Corrosions of other specified parts of unspecified eye and adnexa | ||||
| T26.80XA | Corrosions of other specified parts of unspecified eye and adnexa, initial encounterCMS: Corrosions of oth parts of unsp eye and adnexa, init encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.80XD | Corrosions of other specified parts of unspecified eye and adnexa, subsequent encounterCMS: Corrosions of oth parts of unsp eye and adnexa, subs encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.80XS | Corrosions of other specified parts of unspecified eye and adnexa, sequelaCMS: Corrosions of oth parts of unsp eye and adnexa, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.81 Corrosions of other specified parts of right eye and adnexa | ||||
| T26.81XA | Corrosions of other specified parts of right eye and adnexa, initial encounterCMS: Corrosions of oth parts of right eye and adnexa, init encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.81XD | Corrosions of other specified parts of right eye and adnexa, subsequent encounterCMS: Corrosions of oth parts of right eye and adnexa, subs encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.81XS | Corrosions of other specified parts of right eye and adnexa, sequelaCMS: Corrosions of oth parts of right eye and adnexa, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.82 Corrosions of other specified parts of left eye and adnexa | ||||
| T26.82XA | Corrosions of other specified parts of left eye and adnexa, initial encounterCMS: Corrosions of oth parts of left eye and adnexa, init encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.82XD | Corrosions of other specified parts of left eye and adnexa, subsequent encounterCMS: Corrosions of oth parts of left eye and adnexa, subs encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.82XS | Corrosions of other specified parts of left eye and adnexa, sequelaCMS: Corrosions of oth parts of left eye and adnexa, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.9 Corrosion of eye and adnexa, part unspecified | ||||
| T26.90 Corrosion of unspecified eye and adnexa, part unspecified | ||||
| T26.90XA | Corrosion of unspecified eye and adnexa, part unspecified, initial encounterCMS: Corrosion of unsp eye and adnexa, part unsp, init encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.90XD | Corrosion of unspecified eye and adnexa, part unspecified, subsequent encounterCMS: Corrosion of unsp eye and adnexa, part unsp, subs encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.90XS | Corrosion of unspecified eye and adnexa, part unspecified, sequelaCMS: Corrosion of unsp eye and adnexa, part unspecified, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.91 Corrosion of right eye and adnexa, part unspecified | ||||
| T26.91XA | Corrosion of right eye and adnexa, part unspecified, initial encounterCMS: Corrosion of right eye and adnexa, part unsp, init encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.91XD | Corrosion of right eye and adnexa, part unspecified, subsequent encounterCMS: Corrosion of right eye and adnexa, part unsp, subs encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.91XS | Corrosion of right eye and adnexa, part unspecified, sequela | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.92 Corrosion of left eye and adnexa, part unspecified | ||||
| T26.92XA | Corrosion of left eye and adnexa, part unspecified, initial encounterCMS: Corrosion of left eye and adnexa, part unsp, init encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.92XD | Corrosion of left eye and adnexa, part unspecified, subsequent encounterCMS: Corrosion of left eye and adnexa, part unsp, subs encntr | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| T26.92XS | Corrosion of left eye and adnexa, part unspecified, sequela | 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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