ICD-10 · PDGM grouping
T26-T28 — Burns and corrosions confined to eye and internal organs
Every ICD-10-CM code in this range and the PDGM clinical group CMS assigns to it, read from the CMS grouper crosswalk v07.1.26.
OASIS-E2 v1.00.0 · ingested 2026-04-26
Codes in range
168
No clinical group
114
A period cannot be grouped from these.
Barred as primary
0
CMS rejects these in the primary position.
Where these codes group
54 of the 168 codes in T26-T28 group to MMTA - Other. A further 114 are assigned no clinical group at all, which means a 30-day period cannot be grouped from them.
Every code in T26-T28
Descriptions are CMS’s own, abbreviated as CMS abbreviates them.
| Code | Description | Clinical group | Primary position |
|---|---|---|---|
| T2600XA | Burn of unspecified eyelid and periocular area, init encntr | None | Cannot group |
| T2600XD | Burn of unspecified eyelid and periocular area, subs encntr | None | Cannot group |
| T2600XS | Burn of unspecified eyelid and periocular area, sequela | None | Cannot group |
| T2601XA | Burn of right eyelid and periocular area, initial encounter | A | Accepted |
| T2601XD | Burn of right eyelid and periocular area, subs encntr | A | Accepted |
| T2601XS | Burn of right eyelid and periocular area, sequela | A | Accepted |
| T2602XA | Burn of left eyelid and periocular area, initial encounter | A | Accepted |
| T2602XD | Burn of left eyelid and periocular area, subs encntr | A | Accepted |
| T2602XS | Burn of left eyelid and periocular area, sequela | A | Accepted |
| T2610XA | Burn of cornea and conjunctival sac, unsp eye, init encntr | None | Cannot group |
| T2610XD | Burn of cornea and conjunctival sac, unsp eye, subs encntr | None | Cannot group |
| T2610XS | Burn of cornea and conjunctival sac, unsp eye, sequela | None | Cannot group |
| T2611XA | Burn of cornea and conjunctival sac, right eye, init encntr | A | Accepted |
| T2611XD | Burn of cornea and conjunctival sac, right eye, subs encntr | A | Accepted |
| T2611XS | Burn of cornea and conjunctival sac, right eye, sequela | A | Accepted |
| T2612XA | Burn of cornea and conjunctival sac, left eye, init encntr | A | Accepted |
| T2612XD | Burn of cornea and conjunctival sac, left eye, subs encntr | A | Accepted |
| T2612XS | Burn of cornea and conjunctival sac, left eye, sequela | A | Accepted |
| T2620XA | Burn w resulting rupture and dest of unsp eyeball, init | None | Too unspecified |
| T2620XD | Burn w resulting rupture and dest of unsp eyeball, subs | None | Cannot group |
| T2620XS | Burn w resulting rupture and dest of unsp eyeball, sequela | None | Cannot group |
| T2621XA | Burn w resulting rupture and dest of right eyeball, init | A | Accepted |
| T2621XD | Burn w resulting rupture and dest of right eyeball, subs | A | Accepted |
| T2621XS | Burn w resulting rupture and dest of right eyeball, sequela | A | Accepted |
| T2622XA | Burn w resulting rupture and dest of left eyeball, init | A | Accepted |
| T2622XD | Burn w resulting rupture and dest of left eyeball, subs | A | Accepted |
| T2622XS | Burn w resulting rupture and dest of left eyeball, sequela | A | Accepted |
| T2630XA | Burns of oth parts of unsp eye and adnexa, init encntr | None | Cannot group |
| T2630XD | Burns of oth parts of unsp eye and adnexa, subs encntr | None | Cannot group |
| T2630XS | Burns of oth parts of unspecified eye and adnexa, sequela | None | Cannot group |
| T2631XA | Burns of oth parts of right eye and adnexa, init encntr | A | Accepted |
| T2631XD | Burns of oth parts of right eye and adnexa, subs encntr | A | Accepted |
| T2631XS | Burns of oth parts of right eye and adnexa, sequela | A | Accepted |
| T2632XA | Burns of oth parts of left eye and adnexa, init encntr | A | Accepted |
| T2632XD | Burns of oth parts of left eye and adnexa, subs encntr | A | Accepted |
| T2632XS | Burns of oth parts of left eye and adnexa, sequela | A | Accepted |
| T2640XA | Burn of unsp eye and adnexa, part unspecified, init encntr | None | Cannot group |
| T2640XD | Burn of unsp eye and adnexa, part unspecified, subs encntr | None | Cannot group |
| T2640XS | Burn of unsp eye and adnexa, part unspecified, sequela | None | Cannot group |
| T2641XA | Burn of right eye and adnexa, part unspecified, init encntr | None | Cannot group |
| T2641XD | Burn of right eye and adnexa, part unspecified, subs encntr | None | Cannot group |
| T2641XS | Burn of right eye and adnexa, part unspecified, sequela | None | Cannot group |
| T2642XA | Burn of left eye and adnexa, part unspecified, init encntr | None | Cannot group |
| T2642XD | Burn of left eye and adnexa, part unspecified, subs encntr | None | Cannot group |
| T2642XS | Burn of left eye and adnexa, part unspecified, sequela | None | Cannot group |
| T2650XA | Corrosion of unsp eyelid and periocular area, init encntr | None | Cannot group |
| T2650XD | Corrosion of unsp eyelid and periocular area, subs encntr | None | Cannot group |
| T2650XS | Corrosion of unspecified eyelid and periocular area, sequela | None | Cannot group |
| T2651XA | Corrosion of right eyelid and periocular area, init encntr | None | Cannot group |
| T2651XD | Corrosion of right eyelid and periocular area, subs encntr | None | Cannot group |
| T2651XS | Corrosion of right eyelid and periocular area, sequela | None | Cannot group |
| T2652XA | Corrosion of left eyelid and periocular area, init encntr | None | Cannot group |
| T2652XD | Corrosion of left eyelid and periocular area, subs encntr | None | Cannot group |
| T2652XS | Corrosion of left eyelid and periocular area, sequela | None | Cannot group |
| T2660XA | Corrosion of cornea and conjunctival sac, unsp eye, init | None | Cannot group |
| T2660XD | Corrosion of cornea and conjunctival sac, unsp eye, subs | None | Cannot group |
| T2660XS | Corrosion of cornea and conjunctival sac, unsp eye, sequela | None | Cannot group |
| T2661XA | Corrosion of cornea and conjunctival sac, right eye, init | None | Cannot group |
| T2661XD | Corrosion of cornea and conjunctival sac, right eye, subs | None | Cannot group |
| T2661XS | Corrosion of cornea and conjunctival sac, right eye, sequela | None | Cannot group |
| T2662XA | Corrosion of cornea and conjunctival sac, left eye, init | None | Cannot group |
| T2662XD | Corrosion of cornea and conjunctival sac, left eye, subs | None | Cannot group |
| T2662XS | Corrosion of cornea and conjunctival sac, left eye, sequela | None | Cannot group |
| T2670XA | Corrosion w resulting rupture and dest of unsp eyeball, init | None | Too unspecified |
| T2670XD | Corrosion w resulting rupture and dest of unsp eyeball, subs | None | Cannot group |
| T2670XS | Corros w resulting rupture and dest of unsp eyeball, sequela | None | Cannot group |
| T2671XA | Corros w resulting rupture and dest of right eyeball, init | None | Cannot group |
| T2671XD | Corros w resulting rupture and dest of right eyeball, subs | None | Cannot group |
| T2671XS | Corros w rslt rupture and dest of right eyeball, sequela | None | Cannot group |
| T2672XA | Corrosion w resulting rupture and dest of left eyeball, init | None | Cannot group |
| T2672XD | Corrosion w resulting rupture and dest of left eyeball, subs | None | Cannot group |
| T2672XS | Corros w resulting rupture and dest of left eyeball, sequela | None | Cannot group |
| T2680XA | Corrosions of oth parts of unsp eye and adnexa, init encntr | None | Cannot group |
| T2680XD | Corrosions of oth parts of unsp eye and adnexa, subs encntr | None | Cannot group |
| T2680XS | Corrosions of oth parts of unsp eye and adnexa, sequela | None | Cannot group |
| T2681XA | Corrosions of oth parts of right eye and adnexa, init encntr | None | Cannot group |
| T2681XD | Corrosions of oth parts of right eye and adnexa, subs encntr | None | Cannot group |
| T2681XS | Corrosions of oth parts of right eye and adnexa, sequela | None | Cannot group |
| T2682XA | Corrosions of oth parts of left eye and adnexa, init encntr | None | Cannot group |
| T2682XD | Corrosions of oth parts of left eye and adnexa, subs encntr | None | Cannot group |
| T2682XS | Corrosions of oth parts of left eye and adnexa, sequela | None | Cannot group |
| T2690XA | Corrosion of unsp eye and adnexa, part unsp, init encntr | None | Cannot group |
| T2690XD | Corrosion of unsp eye and adnexa, part unsp, subs encntr | None | Cannot group |
| T2690XS | Corrosion of unsp eye and adnexa, part unspecified, sequela | None | Cannot group |
| T2691XA | Corrosion of right eye and adnexa, part unsp, init encntr | None | Cannot group |
| T2691XD | Corrosion of right eye and adnexa, part unsp, subs encntr | None | Cannot group |
| T2691XS | Corrosion of right eye and adnexa, part unspecified, sequela | None | Cannot group |
| T2692XA | Corrosion of left eye and adnexa, part unsp, init encntr | None | Cannot group |
| T2692XD | Corrosion of left eye and adnexa, part unsp, subs encntr | None | Cannot group |
| T2692XS | Corrosion of left eye and adnexa, part unspecified, sequela | None | Cannot group |
| T270XXA | Burn of larynx and trachea, initial encounter | A | Accepted |
| T270XXD | Burn of larynx and trachea, subsequent encounter | A | Accepted |
| T270XXS | Burn of larynx and trachea, sequela | A | Accepted |
| T271XXA | Burn involving larynx and trachea with lung, init encntr | A | Accepted |
| T271XXD | Burn involving larynx and trachea with lung, subs encntr | A | Accepted |
| T271XXS | Burn involving larynx and trachea with lung, sequela | A | Accepted |
| T272XXA | Burn of other parts of respiratory tract, initial encounter | A | Accepted |
| T272XXD | Burn of other parts of respiratory tract, subs encntr | A | Accepted |
| T272XXS | Burn of other parts of respiratory tract, sequela | A | Accepted |
| T273XXA | Burn of respiratory tract, part unspecified, init encntr | None | Cannot group |
| T273XXD | Burn of respiratory tract, part unspecified, subs encntr | None | Cannot group |
| T273XXS | Burn of respiratory tract, part unspecified, sequela | None | Cannot group |
| T274XXA | Corrosion of larynx and trachea, initial encounter | None | Cannot group |
| T274XXD | Corrosion of larynx and trachea, subsequent encounter | None | Cannot group |
| T274XXS | Corrosion of larynx and trachea, sequela | None | Cannot group |
| T275XXA | Corrosion involving larynx and trachea w lung, init encntr | None | Cannot group |
| T275XXD | Corrosion involving larynx and trachea w lung, subs encntr | None | Cannot group |
| T275XXS | Corrosion involving larynx and trachea with lung, sequela | None | Cannot group |
| T276XXA | Corrosion of other parts of respiratory tract, init encntr | None | Cannot group |
| T276XXD | Corrosion of other parts of respiratory tract, subs encntr | None | Cannot group |
| T276XXS | Corrosion of other parts of respiratory tract, sequela | None | Cannot group |
| T277XXA | Corrosion of respiratory tract, part unsp, init encntr | None | Cannot group |
| T277XXD | Corrosion of respiratory tract, part unsp, subs encntr | None | Cannot group |
| T277XXS | Corrosion of respiratory tract, part unspecified, sequela | None | Cannot group |
| T280XXA | Burn of mouth and pharynx, initial encounter | A | Accepted |
| T280XXD | Burn of mouth and pharynx, subsequent encounter | A | Accepted |
| T280XXS | Burn of mouth and pharynx, sequela | A | Accepted |
| T281XXA | Burn of esophagus, initial encounter | A | Accepted |
| T281XXD | Burn of esophagus, subsequent encounter | A | Accepted |
| T281XXS | Burn of esophagus, sequela | A | Accepted |
| T282XXA | Burn of other parts of alimentary tract, initial encounter | A | Accepted |
| T282XXD | Burn of other parts of alimentary tract, subs encntr | A | Accepted |
| T282XXS | Burn of other parts of alimentary tract, sequela | A | Accepted |
| T283XXA | Burn of internal genitourinary organs, initial encounter | A | Accepted |
| T283XXD | Burn of internal genitourinary organs, subsequent encounter | A | Accepted |
| T283XXS | Burn of internal genitourinary organs, sequela | A | Accepted |
| T2840XA | Burn of unspecified internal organ, initial encounter | None | Cannot group |
| T2840XD | Burn of unspecified internal organ, subsequent encounter | None | Cannot group |
| T2840XS | Burn of unspecified internal organ, sequela | None | Cannot group |
| T28411A | Burn of right ear drum, initial encounter | A | Accepted |
| T28411D | Burn of right ear drum, subsequent encounter | A | Accepted |
| T28411S | Burn of right ear drum, sequela | A | Accepted |
| T28412A | Burn of left ear drum, initial encounter | A | Accepted |
| T28412D | Burn of left ear drum, subsequent encounter | A | Accepted |
| T28412S | Burn of left ear drum, sequela | A | Accepted |
| T28419A | Burn of unspecified ear drum, initial encounter | None | Cannot group |
| T28419D | Burn of unspecified ear drum, subsequent encounter | None | Cannot group |
| T28419S | Burn of unspecified ear drum, sequela | None | Cannot group |
| T2849XA | Burn of other internal organ, initial encounter | A | Accepted |
| T2849XD | Burn of other internal organ, subsequent encounter | A | Accepted |
| T2849XS | Burn of other internal organ, sequela | A | Accepted |
| T285XXA | Corrosion of mouth and pharynx, initial encounter | None | Cannot group |
| T285XXD | Corrosion of mouth and pharynx, subsequent encounter | None | Cannot group |
| T285XXS | Corrosion of mouth and pharynx, sequela | None | Cannot group |
| T286XXA | Corrosion of esophagus, initial encounter | None | Cannot group |
| T286XXD | Corrosion of esophagus, subsequent encounter | None | Cannot group |
| T286XXS | Corrosion of esophagus, sequela | None | Cannot group |
| T287XXA | Corrosion of other parts of alimentary tract, init encntr | None | Cannot group |
| T287XXD | Corrosion of other parts of alimentary tract, subs encntr | None | Cannot group |
| T287XXS | Corrosion of other parts of alimentary tract, sequela | None | Cannot group |
| T288XXA | Corrosion of internal genitourinary organs, init encntr | None | Cannot group |
| T288XXD | Corrosion of internal genitourinary organs, subs encntr | None | Cannot group |
| T288XXS | Corrosion of internal genitourinary organs, sequela | None | Cannot group |
| T2890XA | Corrosions of unspecified internal organs, initial encounter | None | Cannot group |
| T2890XD | Corrosions of unspecified internal organs, subs encntr | None | Cannot group |
| T2890XS | Corrosions of unspecified internal organs, sequela | None | Cannot group |
| T28911A | Corrosions of right ear drum, initial encounter | None | Cannot group |
| T28911D | Corrosions of right ear drum, subsequent encounter | None | Cannot group |
| T28911S | Corrosions of right ear drum, sequela | None | Cannot group |
| T28912A | Corrosions of left ear drum, initial encounter | None | Cannot group |
| T28912D | Corrosions of left ear drum, subsequent encounter | None | Cannot group |
| T28912S | Corrosions of left ear drum, sequela | None | Cannot group |
| T28919A | Corrosions of unspecified ear drum, initial encounter | None | Cannot group |
| T28919D | Corrosions of unspecified ear drum, subsequent encounter | None | Cannot group |
| T28919S | Corrosions of unspecified ear drum, sequela | None | Cannot group |
| T2899XA | Corrosions of other internal organs, initial encounter | None | Cannot group |
| T2899XD | Corrosions of other internal organs, subsequent encounter | None | Cannot group |
| T2899XS | Corrosions of other internal organs, sequela | None | Cannot group |
Source: CMS HH PPS Grouper Software v07.1.26, effective 2026-04-01. 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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