T26.52XA ICD-10 Code: Corrosion of left eyelid and periocular area, initial encounter

Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.

Inpatient Payment Groups (MS-DRG)

MS-DRGs this diagnosis helps define, as principal or secondary, per the CMS ICD-10-CM/PCS MS-DRG Definitions Manual v43.0 (FY2026), Appendix B.

A diagnosis appearing in a group's logic does not by itself determine the DRG assigned to a stay; the grouper uses the full claim.

Code Set: Valid FY2026 and FY2027. FY2026 took effect October 1, 2025.

Corrosion of left eyelid and periocular area, initial encounter is a billable ICD-10-CM diagnosis code (T26.52A).

Sequencing, inclusion, and exclusion notes published for T26.52XA in the official ICD-10-CM tabular list.

Underlying conditions that must be sequenced before this code.

Supplementary codes the tabular list directs you to add.

Yes. The appropriate 7th character is to be added to each code from category T26.

Official ICD-10-CM classifications closest to T26.52XA in its code family, with their registry titles.

T26.51 — Corrosion of right eyelid and periocular area
T26.51XA — Corrosion of right eyelid and periocular area, initial encounter
T26.51XD — Corrosion of right eyelid and periocular area, subsequent encounter
T26.51XS — Corrosion of right eyelid and periocular area, sequela
T26.52 — Corrosion of left eyelid and periocular area
T26.52XD — Corrosion of left eyelid and periocular area, subsequent encounter
T26.52XS — Corrosion of left eyelid and periocular area, sequela
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 encounter