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Dx

ICD-10-CM 2027

ICD-10 code for elbow fracture

S42.40

Unspecified fracture of lower end of humerus

Header — needs a more specific code

From the official ICD-10-CM alphabetic index entry “Fracture, traumatic (abduction) (adduction) (separation) › elbow”. Page updated September 29, 2026.

About coding elbow fracture

The ICD-10-CM code for elbow fracture is S42.40 (Unspecified fracture of lower end of humerus).

Within S42.4, choose S42.40 (Unspecified fracture of lower end of humerus) only when documentation doesn't support a more specific option: simple supracondylar fracture without intercondylar fracture of humerus (S42.41), comminuted supracondylar fracture without intercondylar fracture of humerus (S42.42), fracture (avulsion) of lateral epicondyle of humerus (S42.43), fracture (avulsion) of medial epicondyle of humerus (S42.44), fracture of lateral condyle of humerus (S42.45), fracture of medial condyle of humerus (S42.46), transcondylar fracture of humerus (S42.47), Torus fracture of lower end of humerus (S42.48) and 1 more.

Codes in this range require a 7th character: A for initial encounter for closed fracture, B for initial encounter for open fracture, D for subsequent encounter for fracture with routine healing, G for subsequent encounter for fracture with delayed healing, K for subsequent encounter for fracture with nonunion, P for subsequent encounter for fracture with malunion and 1 more. Use placeholder "X" characters to fill any empty positions before the 7th character.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Common questions about elbow fracture ICD-10 codes

What is the ICD-10 code for elbow fracture?

S42.40 — Unspecified fracture of lower end of humerus (a header code; report a more specific subcode).

Is S42.40 billable?

No. S42.40 is a header code. Report one of its more specific subcodes instead.