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ICD-10-CM 2027

ICD-10 code for internal organ s burn

T28.40

Burn of unspecified internal organ

Header — needs a more specific code

From the official ICD-10-CM alphabetic index entry “Burn (electricity) (flame) (hot gas, liquid or hot object) (radiation) (steam) (thermal) › internal organ (s)”. Page updated September 29, 2026.

About coding internal organ s burn

The ICD-10-CM code for internal organ s burn is T28.40 (Burn of unspecified internal organ). The official index lists 8 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on T28.40.

Within T28.4, choose T28.40 (unspecified internal organ) only when documentation doesn't support a more specific option: ear drum (T28.41) and other internal organ (T28.49).

Codes in this range require a 7th character: A for initial encounter, D for subsequent encounter and S for sequela. Use placeholder "X" characters to fill any empty positions before the 7th character.

Use an additional code for: external cause code to identify the source and intent of the burn (X00-X19, X75-X77, X96-X98) and external cause code to identify place (Y92).

More specific internal organ s burn codes (official index)

  • alimentary tract T28.2 — Burn of other parts of alimentary tract
  • esophagus T28.1 — Burn of esophagus
  • eardrum T28.41 — Burn of ear drum
  • esophagus T28.1 — Burn of esophagus
  • from caustic or corrosive substance (swallowing) NEC
  • genitourinary T28.3 — Burn of internal genitourinary organs
  • mouth T28.0 — Burn of mouth and pharynx
  • pharynx T28.0 — Burn of mouth and pharynx
  • respiratory tract
  • specified organ NEC T28.49 — Burn of other internal organ

Common questions about internal organ s burn ICD-10 codes

What is the ICD-10 code for internal organ s burn?

T28.40 — Burn of unspecified internal organ (a header code; report a more specific subcode). More specific codes apply when the documentation supports them: T28.2, T28.1, T28.41, T28.1 and others below.

What is the ICD-10 code for alimentary tract internal organ s burn?

T28.2 — Burn of other parts of alimentary tract (header code; choose a more specific subcode).

What is the ICD-10 code for eardrum internal organ s burn?

T28.41 — Burn of ear drum (header code; choose a more specific subcode).

What is the ICD-10 code for esophagus internal organ s burn?

T28.1 — Burn of esophagus (header code; choose a more specific subcode).

What is the ICD-10 code for genitourinary internal organ s burn?

T28.3 — Burn of internal genitourinary organs (header code; choose a more specific subcode).

What is the ICD-10 code for mouth internal organ s burn?

T28.0 — Burn of mouth and pharynx (header code; choose a more specific subcode).

What is the ICD-10 code for pharynx internal organ s burn?

T28.0 — Burn of mouth and pharynx (header code; choose a more specific subcode).

Is T28.40 billable?

No. T28.40 is a header code. Report one of its more specific subcodes instead.