T24.021A Burn of unspecified degree of right knee, initial encounter

ICD-10-CM T24.021A: Burn of unspecified degree of right knee, initial encounter

ICD-10-CM code T24.021A identifies a burn of unspecified degree located on the right knee during an initial encounter. The concept is active and classified with the semantic type of injury or poisoning. It exists as a narrower concept under a parent code for right knee burns of unspecified degree. 1

Plain-language overview

Code T24.021A labels a burn of unspecified degree on the right knee for an initial encounter, providing a standardized terminology record for this specific injury. 1

What this code represents

The terminology record classifies T24.021A with the semantic type of injury or poisoning, and the concept is currently active in the ICD-10-CM version 2026 terminology. 1

T24.021A is a narrower concept under the parent code T24.021, which denotes a burn of unspecified degree of the right knee without specifying the encounter type. 1

Coding details

The code T24.021A is listed alongside T24.021S for sequela and T24.021D for subsequent encounters within the same terminology family for right knee burns. 4

Clinical context

Clinical references describe burn severity classifications including superficial, partial-thickness, and full-thickness burns, but the T24.021A record does not specify which severity applies. 2 1

Documentation considerations

The terminology record for T24.021A explicitly denotes the right knee and the initial encounter, distinguishing it from the parent code T24.021 which lacks the encounter specification. 1 4

What the sources add

Comparing sources, S1 provides the official semantic type and parent hierarchy, while S3 and S4 add operational context by listing related subsequent and sequela codes within the same code family. 1 3 4

Questions to verify

Reviewers can confirm whether the clinical documentation specifies the burn degree, as T24.021A explicitly leaves the degree unspecified while general clinical sources describe varying burn thickness levels. 1 2

Sources

1. ICD-10-CM T24.021A terminology record — National Cancer Institute Enterprise Vocabulary Services; accessed 2026-07-27.
2. Burns: MedlinePlus Medical Encyclopedia — medlineplus.gov; accessed 2026-07-27.
3. Browse Code Systems — vsac.nlm.nih.gov; accessed 2026-07-27.
4. EVS Explore — evsexplore.semantics.cancer.gov; accessed 2026-07-27.