T26.40 is the authoritative medical code for Burn of unspecified eye and adnexa, part unspecified. This classification is used in medical billing and clinical recording to specify the clinical criteria for burn of unspecified eye and adnexa, part unspecified (ICD-10-CM T26.40), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: NO. This is a clinician non-billable / parent hierarchy grouping in the ICD-10-CM system.
Official Registry Overview & Definition
Burn of unspecified eye and adnexa, part unspecified is a non-billable ICD-10-CM category code T26.40. A more specific billable subcode must be selected for claims submission. Use additional code: external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92). 7th character: The appropriate 7th character is to be added to each code from category T26.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for T26.40 in the official ICD-10-CM tabular list.
Use Additional Code
Supplementary codes the tabular list directs you to add.
- external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92)
Frequently Asked Questions (FAQ) & Clinical Guidance
Can T26.40 be billed directly?
No. T26.40 (Burn of unspecified eye and adnexa, part unspecified) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.
Does T26.40 require a 7th character?
Yes. The appropriate 7th character is to be added to each code from category T26.
Is an additional code needed with T26.40?
Use additional code(s) to specify: external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92).
Codes in This Family (40)
Official ICD-10-CM classifications in the same code family as T26.40, with their registry titles.
- T26 — Burn and corrosion confined to eye and adnexa
- T26-T28 — Burns and corrosions confined to eye and internal organs (T26-T28)
- T26.0 — Burn of eyelid and periocular area
- T26.00 — Burn of unspecified eyelid and periocular area
- T26.00XA — Burn of unspecified eyelid and periocular area, initial encounter
- T26.00XD — Burn of unspecified eyelid and periocular area, subsequent encounter
- T26.00XS — Burn of unspecified eyelid and periocular area, sequela
- T26.01 — Burn of right eyelid and periocular area
- T26.01XA — Burn of right eyelid and periocular area, initial encounter
- T26.01XD — Burn of right eyelid and periocular area, subsequent encounter
- T26.01XS — Burn of right eyelid and periocular area, sequela
- T26.02 — Burn of left eyelid and periocular area
- T26.02XA — Burn of left eyelid and periocular area, initial encounter
- T26.02XD — Burn of left eyelid and periocular area, subsequent encounter
- T26.02XS — Burn of left eyelid and periocular area, sequela
- T26.1 — Burn of cornea and conjunctival sac
- T26.10 — Burn of cornea and conjunctival sac, unspecified eye
- T26.10XA — Burn of cornea and conjunctival sac, unspecified eye, initial encounter
- T26.10XD — Burn of cornea and conjunctival sac, unspecified eye, subsequent encounter
- T26.10XS — Burn of cornea and conjunctival sac, unspecified eye, sequela
- T26.11 — Burn of cornea and conjunctival sac, right eye
- T26.11XA — Burn of cornea and conjunctival sac, right eye, initial encounter
- T26.11XD — Burn of cornea and conjunctival sac, right eye, subsequent encounter
- T26.11XS — Burn of cornea and conjunctival sac, right eye, sequela
- T26.12 — Burn of cornea and conjunctival sac, left eye
- T26.12XA — Burn of cornea and conjunctival sac, left eye, initial encounter
- T26.12XD — Burn of cornea and conjunctival sac, left eye, subsequent encounter
- T26.12XS — Burn of cornea and conjunctival sac, left eye, sequela
- T26.2 — Burn with resulting rupture and destruction of eyeball
- T26.20 — Burn with resulting rupture and destruction of unspecified eyeball
- T26.20XA — Burn with resulting rupture and destruction of unspecified eyeball, initial encounter
- T26.20XD — Burn with resulting rupture and destruction of unspecified eyeball, subsequent encounter
- T26.20XS — Burn with resulting rupture and destruction of unspecified eyeball, sequela
- T26.21 — Burn with resulting rupture and destruction of right eyeball
- T26.21XA — Burn with resulting rupture and destruction of right eyeball, initial encounter
- T26.21XD — Burn with resulting rupture and destruction of right eyeball, subsequent encounter
- T26.21XS — Burn with resulting rupture and destruction of right eyeball, sequela
- T26.22 — Burn with resulting rupture and destruction of left eyeball
- T26.22XA — Burn with resulting rupture and destruction of left eyeball, initial encounter
- T26.22XD — Burn with resulting rupture and destruction of left eyeball, subsequent encounter
Related Codes & Numerical Sequence (Crawl Map)
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures:
ICD Code T22.40
Corrosion of unspecified degree of shoulder and upper limb, except wrist and hand, unspecified site
ICD Code T24.40
Corrosion of unspecified degree of unspecified site of lower limb, except ankle and foot
ICD Code T31.40
Burns involving 40-49% of body surface with 0% to 9% third degree burns