T28.40 is the authoritative medical code for Burn of unspecified internal organ. This classification is used in medical billing and clinical recording to specify the clinical criteria for burn of unspecified internal organ (ICD-10-CM T28.40), 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 internal organ is a non-billable ICD-10-CM category code T28.40. A more specific billable subcode must be selected for claims submission. Use additional code: external cause code to identify the source and intent of the burn (X00-X19, X75-X77, X96-X98); external cause code to identify place Y92. 7th character: The appropriate 7th character is to be added to each code from category T28.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for T28.40 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 and intent of the burn (X00-X19, X75-X77, X96-X98)
- external cause code to identify place Y92
Frequently Asked Questions (FAQ) & Clinical Guidance
Can T28.40 be billed directly?
No. T28.40 (Burn of unspecified internal organ) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.
Does T28.40 require a 7th character?
Yes. The appropriate 7th character is to be added to each code from category T28.
Is an additional code needed with T28.40?
Use additional code(s) to specify: external cause code to identify the source and intent of the burn (X00-X19, X75-X77, X96-X98); external cause code to identify place (Y92).
Nearest Codes in This Family
Official ICD-10-CM classifications closest to T28.40 in its code family, with their registry titles.
- T28 — Burn and corrosion of other internal organs
- T28.0 — Burn of mouth and pharynx
- T28.0XXA — Burn of mouth and pharynx, initial encounter
- T28.0XXD — Burn of mouth and pharynx, subsequent encounter
- T28.0XXS — Burn of mouth and pharynx, sequela
- T28.1 — Burn of esophagus
- T28.1XXA — Burn of esophagus, initial encounter
- T28.1XXD — Burn of esophagus, subsequent encounter
- T28.1XXS — Burn of esophagus, sequela
- T28.2 — Burn of other parts of alimentary tract
View all 40 codes in the T28 family
Indexed Clinical Terms (1)
Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code.
- Burn (electricity) (flame) (hot gas, liquid or hot object) (radiation) (steam) (thermal), internal organ (s)