S66.21 - Strain of extensor muscle, fascia and tendon of thumb at wrist and hand level
- Applicable to Strain of extensor muscle, fascia and tendon of thumb at wrist and hand level
- The 2025 edition of ICD10-CM S66.21 became effective on October 1, 2024.
- This is the American ICD10-CM version of S66.21 - other international versions of ICD10 S66.21 may differ.
- S66.21 is a Non-Billable / Non-Specific ICD10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- S66.21 Code should not be used for billing or reimbursement purposes as there are multiple ICD-10 CM codes below it that contain a greater level of detail.
- S66.21 - Strain of extensor muscle, fascia and tendon of thumb at wrist and hand level
- S66.21 - Strain of extensor muscle, fascia and tendon of thumb at wrist and hand level
- S66.211 - Strain of extensor muscle, fascia and tendon of right thumb at wrist and hand level
- S66.212 - Strain of extensor muscle, fascia and tendon of left thumb at wrist and hand level
- S66.219 - Strain of extensor muscle, fascia and tendon of unspecified thumb at wrist and hand level
Non-Billable/Non-Specific Code
The following codes above S66.21 contain annotation back-references that may be applicable to S66.21:
- Chapter: S00-T88 - Injury, poisoning and certain other consequences of external causes
- Section: S60-S69 - Injuries to the wrist, hand and fingers
- Category: S66 - Injury of muscle, fascia and tendon at wrist and hand level
Browse other similar CM codes:
Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.
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