S66.011 — Strain of long flexor muscle, fascia and tendon of right thumb at wrist and hand level
Is S66.011 billable?
No — S66.011 is a non-billable header code. S66.011 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 S66.011.
Billable codes under this header
- S66.011AStrain of long flexor muscle, fascia and tendon of right thumb at wrist and hand level, initial encounter
- S66.011DStrain of long flexor muscle, fascia and tendon of right thumb at wrist and hand level, subsequent encounter
- S66.011SStrain of long flexor muscle, fascia and tendon of right thumb at wrist and hand level, sequela
S66.011 at a glance
| Code | S66.011 |
|---|---|
| Description | Strain of long flexor muscle, fascia and tendon of right thumb at wrist and hand level |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
How is S66.011 listed in the Alphabetic Index?
The Alphabetic Index lists these routes under S66.01, the nearest indexed parent of S66.011. Use them to find the family, then select the specific code.
- Injury › muscle › thumb › flexor › hand level › strain
Use additional code — inherited from Chapter 19
Report an additional code alongside S66.011 to fully describe the condition. S66.011 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 S66.011, but a patient may have both at the same time. When documentation supports it, S66.011 and the excluded code may both be reported.
Excludes2 — not included here — inherited from S60-S69
The conditions below are not part of S66.011, but a patient may have both at the same time. When documentation supports it, S66.011 and the excluded code may both be reported.
Excludes2 — not included here — inherited from S66
The conditions below are not part of S66.011, but a patient may have both at the same time. When documentation supports it, S66.011 and the excluded code may both be reported.
- sprain of joints and ligaments of wrist and hand (S63.-)
Code also — inherited from S66
Two codes may be needed to describe the condition fully. Whether S66.011 is sequenced first depends on the reason for the encounter.
- any associated open wound (S61.-)
What codes fall under S66.011? (3)
- S66.011AStrain of long flexor muscle, fascia and tendon of right thumb at wrist and hand level, initial encounter
- S66.011DStrain of long flexor muscle, fascia and tendon of right thumb at wrist and hand level, subsequent encounter
- S66.011SStrain of long flexor muscle, fascia and tendon of right thumb at wrist and hand level, sequela
How long has S66.011 existed?
S66.011 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.