S63.121 — Subluxation of interphalangeal joint of right thumb
Is S63.121 billable?
No — S63.121 is a non-billable header code. S63.121 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 3 billable codes beneath S63.121.
S63.121 at a glance
| Code | S63.121 |
|---|---|
| Description | Subluxation of interphalangeal joint of right thumb |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
How is S63.121 listed in the Alphabetic Index?
The Alphabetic Index lists these routes under S63.12, the nearest indexed parent of S63.121. Use them to find the family, then select the specific code.
- Dislocation › interphalangeal › thumb (articular)
- Subluxation › interphalangeal › thumb
Use additional code — inherited from Chapter 19
Report an additional code alongside S63.121 to fully describe the condition. S63.121 is sequenced first.
- code to identify any retained foreign body, if applicable (Z18.-)
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of S63.121, but a patient may have both at the same time. When documentation supports it, S63.121 and the excluded code may both be reported.
Excludes2 — not included here — inherited from S60-S69
The conditions below are not part of S63.121, but a patient may have both at the same time. When documentation supports it, S63.121 and the excluded code may both be reported.
Excludes2 — not included here — inherited from S63
The conditions below are not part of S63.121, but a patient may have both at the same time. When documentation supports it, S63.121 and the excluded code may both be reported.
- strain of muscle, fascia and tendon of wrist and hand (S66.-)
Code also — inherited from S63
Two codes may be needed to describe the condition fully. Whether S63.121 is sequenced first depends on the reason for the encounter.
- any associated open wound
What codes fall under S63.121? (3)
How long has S63.121 existed?
S63.121 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
- FY2018Subluxation of unspecified interphalangeal joint of right thumbSubluxation of interphalangeal joint of right thumb
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.
What other codes are in the S63.12 family? (5)
- S63.122Subluxation of interphalangeal joint of left thumbnot billable
- S63.123Subluxation of interphalangeal joint of unspecified thumbnot billable
- S63.124Dislocation of interphalangeal joint of right thumbnot billable
- S63.125Dislocation of interphalangeal joint of left thumbnot billable
- S63.126Dislocation of interphalangeal joint of unspecified thumbnot billable