S66.009
Non-billableUnspecified injury of long flexor muscle, fascia and tendon of unspecified thumb at wrist and hand level
S66.009 is the ICD-10-CM code for Unspecified injury of long flexor muscle, fascia and tendon of unspecified thumb at wrist and hand level. It is a non-billable category code — use a more specific child code such as S66.009A for billing.
S00-T88 Injury, poisoning and certain other consequences of external causes
No additional coding notes for this code.
Frequently asked questions
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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