Open wound of left index finger and repair of a severed digital nerve. ICD-10-CM Codes:
a) S61.002A (Open wound of left index finger without damage to nail, initial encounter)
b) S64.2 (Injury of digital nerve of thumb)
c) S64.31 (Complete traumatic amputation of thumb)
d) S64.19 (Other injury of digital nerve of other finger)