T26.80XA ICD-10-CM Code: Corrosions of other specified parts of unspecified eye and adnexa, 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, Appendix B.
- MS-DRG 124 — OTHER DISORDERS OF THE EYE WITH MCC OR THROMBOLYTIC AGENT (MDC 02)
- MS-DRG 125 — OTHER DISORDERS OF THE EYE WITHOUT MCC (MDC 02)
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.
Official Registry Overview & Definition
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for T26.80XA 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)
Change history
No changes recorded for this code — unchanged since the FY2016 baseline of the change ledger.
Verify Before Coding
- Billable — reportable as written.
From the code registry, the Medicare Code Editor, and the MS-DRG Definitions Manual. Check it against a full claim.
Contextual Map
Every relationship of T26.80XA in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.
Hierarchy
- T26.80 — Corrosions of other specified parts of unspecified eye and adnexa [Hierarchy]
Referenced by Excludes1 notes
- H10.21 — Acute toxic conjunctivitis [Excludes1](via T26.-): “burn and corrosion of eye and adnexa (T26.-)”
Referenced by Excludes2 notes
- T20 — Burn and corrosion of head, face, and neck [Excludes2](via T26.-): “burn and corrosion of eye and adnexa (T26.-)”
Clinical classification (CCSR)
- INJ019 — Burn and corrosion, initial encounter [CCSR]
Potential MS-DRG
- DRG 124 — OTHER DISORDERS OF THE EYE WITH MCC OR THROMBOLYTIC AGENT [MS-DRG]: “OTHER DISORDERS OF THE EYE WITH MCC OR THROMBOLYTIC AGENT (MDC 02)”
- DRG 125 — OTHER DISORDERS OF THE EYE WITHOUT MCC [MS-DRG]: “OTHER DISORDERS OF THE EYE WITHOUT MCC (MDC 02)”
Nearest codes (40)
- T26 — Burn and corrosion confined to eye and adnexa [Sibling]
- T26.61XS — Corrosion of cornea and conjunctival sac, right eye, sequela [Sibling]
- T26.62 — Corrosion of cornea and conjunctival sac, left eye [Sibling]
- T26.62XA — Corrosion of cornea and conjunctival sac, left eye, initial encounter [Sibling]
- T26.62XD — Corrosion of cornea and conjunctival sac, left eye, subsequent encounter [Sibling]
- T26.62XS — Corrosion of cornea and conjunctival sac, left eye, sequela [Sibling]
- T26.7 — Corrosion with resulting rupture and destruction of eyeball [Sibling]
- T26.70 — Corrosion with resulting rupture and destruction of unspecified eyeball [Sibling]
- and 32 more
Referenced by Other Codes
Clinical classification (AHRQ CCSR):INJ019 — Burn and corrosion, initial encounter (default).
Clinical Classifications Software Refined (CCSR) for ICD-10-CM Diagnoses. Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality.
Potential MS-DRG Relationships (FY2026)
Not on the CMS CC/MCC list — as a secondary diagnosis this code does not change MS-DRG severity.
Named in the grouper logic of 2 MS-DRGs: DRG 124 (MDC 02), DRG 125 (MDC 02).
From the CMS MS-DRG Definitions Manual (Appendices B and C). Actual DRG assignment depends on the complete claim.
Official ICD-10-CM tabular notes on other codes that name T26.80XA or its code family.
1 Excludes1 notes: H10.21 (via T26.-).
1 Excludes2 notes: T20 (via T26.-).
Frequently Asked Questions (FAQ) & Clinical Guidance
Does T26.80XA 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 T26.80XA in its code family, with their registry titles.
- 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
- T26.80 — Corrosions of other specified parts of unspecified eye and adnexa
- 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
- T26.81XD — Corrosions of other specified parts of right eye and adnexa, subsequent encounter