Other injury of extensor muscle, fascia and tendon of unspecified finger at wrist and hand level, subsequent encounter
Short description: Inj extensor musc/fasc/tend unsp finger at wrs/hnd lv, subs
- Chapter
- 19. Injury, poisoning and certain other consequences of external causes
- Category
- S66
- Effective date
- October 1, 2026
Related codes in category S66
Frequently asked questions
What is ICD-10 code S66.399D?
S66.399D is an ICD-10-CM diagnosis code for Other injury of extensor muscle, fascia and tendon of unspecified finger at wrist and hand level, subsequent encounter.
Is S66.399D a billable code?
Yes. S66.399D is billable and specific enough to be used on a claim.
What ICD-10-CM chapter is S66.399D in?
S66.399D falls under Chapter 19: Injury, poisoning and certain other consequences of external causes.
When did S66.399D become effective?
S66.399D has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to S66.399D?
S66.399D belongs to category S66, which includes 12 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.