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T26.10XA vs T26.12XA

T26.10XA (Burn of cornea and conjunctival sac, unspecified eye, initial encounter) compared with T26.12XA (Burn of cornea and conjunctival sac, left eye, initial encounter), from the official CMS tabular data. T26.10XA and T26.12XA code the same condition on opposite sides. MedCoder-derived

Relationship

Review

Laterality relationship

T26.10XA
Unspecified
Burn of cornea and conjunctival sac, unspecified eye, initial encounter
T26.12XA
Left
Burn of cornea and conjunctival sac, left eye, initial encounter

Same condition; these differ only in which side is documented.

These codes share a category and title and differ only in the side affected. The documentation decides which applies, and a bilateral code is reported only where the code set provides one.

Source: ICD-10-CM tabular list (laterality variant derived from the code title)

Can these codes be reported together?

Same condition, opposite side. T26.10XA and T26.12XA name the same condition on opposite sides of the body.

Same category and title, differing only in which side is affected — the documentation decides which one applies, and a bilateral code is reported only where the code set provides one.

Side by side

T26.10XABurn of cornea and conjunctival sac, unspecified eye, initial encounterT26.12XABurn of cornea and conjunctival sac, left eye, initial encounter
Billing statusBillableBillable
ClassificationS00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88)S00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88)
DefinitionBurn of cornea and conjunctival sac, unspecified eye, initial encounter is a billable ICD-10-CM diagnosis code (T26.10XA).Burn of cornea and conjunctival sac, left eye, initial encounter is a billable ICD-10-CM diagnosis code (T26.12XA).
7th characterThe appropriate 7th character is to be added to each code from category T26The appropriate 7th character is to be added to each code from category T26
Use additional code
external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92)
external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92)

Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources