S61.0Open wound of thumb without damage to nail

S61.0 is the ICD-10-CM diagnosis code for open wound of thumb without damage to nail. It belongs to category S61 (open wound of wrist, hand and fingers), block S60-S69 (injuries to the wrist, hand and fingers) and chapter 19 (injury, poisoning and certain other consequences of external causes). It is a header code, so it can't be reported by itself; one of its 6 subcodes must be used instead.

Within S61, choose S61.0 (thumb without damage to nail) only when documentation doesn't support a more specific option: thumb with damage to nail (S61.1), other finger without damage to nail (S61.2), other finger with damage to nail (S61.3), hand (S61.4) and wrist (S61.5).

Codes in this range require a 7th character: A for initial encounter, D for subsequent encounter and S for sequela. Use placeholder "X" characters to fill any empty positions before the 7th character.

Don't report S61.0 together with the conditions in its Excludes1 note: open wound of thumb with damage to nail (S61.1-).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.