T26.51 ICD-10-CM Code: Corrosion of right eyelid and periocular area
Billing Status: NO. This is a clinician non-billable / parent hierarchy grouping in the ICD-10-CM system.
Code Set: Valid FY2026 and FY2027. FY2026 took effect October 1, 2025.
Official Registry Overview & Definition
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for T26.51 in the official ICD-10-CM tabular list.
Code First
Underlying conditions that must be sequenced before this code.
- (T51-T65) to identify chemical and intent
Use Additional Code
Supplementary codes the tabular list directs you to add.
- external cause code to identify place (Y92)
Frequently Asked Questions (FAQ) & Clinical Guidance
Can T26.51 be billed directly?
No. T26.51 (Corrosion of right eyelid and periocular area) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.
Does T26.51 require a 7th character?
Yes. The appropriate 7th character is to be added to each code from category T26.
Nearest Codes in This Family
Official ICD-10-CM classifications closest to T26.51 in its code family, with their registry titles.
- 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 encounter
- T26.50XD — Corrosion of unspecified eyelid and periocular area, subsequent encounter
- T26.50XS — Corrosion of unspecified eyelid and periocular area, sequela
- 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
- T26.52XA — Corrosion of left eyelid and periocular area, initial encounter