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ICD-10/T26.80

T26.80 ICD-10-CM Code: Corrosions of other specified parts of unspecified eye and adnexa

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

Corrosions of other specified parts of unspecified eye and adnexa is a non-billable ICD-10-CM category code (T26.80). A more specific billable subcode must be selected for claims submission.

Official Tabular Instructional Notes

Sequencing, inclusion, and exclusion notes published for T26.80 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 T26.80 be billed directly?

No. T26.80 (Corrosions of other specified parts of unspecified eye and adnexa) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.

Does T26.80 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 T26.80 in its code family, with their registry titles.

  • T26.72 — Corrosion with resulting rupture and destruction of left eyeball
  • T26.72XA — Corrosion with resulting rupture and destruction of left eyeball, initial encounter
  • T26.72XD — Corrosion with resulting rupture and destruction of left eyeball, subsequent encounter
  • T26.72XS — Corrosion with resulting rupture and destruction of left eyeball, sequela
  • T26.8 — Corrosions of other specified parts of eye and adnexa
  • T26.80XA — Corrosions of other specified parts of unspecified eye and adnexa, initial encounter
  • T26.80XD — Corrosions of other specified parts of unspecified eye and adnexa, subsequent encounter
  • T26.80XS — Corrosions of other specified parts of unspecified eye and adnexa, sequela
  • 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 encounter

View all codes in the T26 family