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ICD-10-CM 2027

ICD-10 code for thumb subluxation

S63.103

Unspecified subluxation of unspecified thumb

Header — needs a more specific code

From the official ICD-10-CM alphabetic index entry “Subluxation › thumb”. Page updated September 29, 2026.

About coding thumb subluxation

The ICD-10-CM code for thumb subluxation is S63.103 (Unspecified subluxation of unspecified thumb).

Within S63.10, choose S63.103 (subluxation of unspecified thumb) only when documentation doesn't support a more specific option: subluxation of right thumb (S63.101), subluxation of left thumb (S63.102), dislocation of right thumb (S63.104), dislocation of left thumb (S63.105) and dislocation of unspecified thumb (S63.106).

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.

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

More specific thumb subluxation codes (official index)

  • interphalangeal joint
  • metacarpophalangeal joint

Common questions about thumb subluxation ICD-10 codes

What is the ICD-10 code for thumb subluxation?

S63.103 — Unspecified subluxation of unspecified thumb (a header code; report a more specific subcode).

Is S63.103 billable?

No. S63.103 is a header code. Report one of its more specific subcodes instead.