S60.421A Blister (nonthermal) of left index finger, initial encounter

Billable ICD-10-CM code, FY2026.

Built from S60.421 with 7th character A (initial encounter).

Applies from S60 Superficial injury of wrist, hand and fingers

7th character note

• The appropriate 7th character is to be added to each code from category S60

7th character required

• A — initial encounter
• D — subsequent encounter
• S — sequela

Code annotations containing back-references to S60.421A

Back-references to S60.4

• Type 2 Excludes: S60.5 Other superficial injuries of hand ("superficial injuries of fingers (S60.3-, S60.4-)")

Back-references to S60

• Type 2 Excludes: S50 Superficial injury of elbow and forearm ("superficial injury of wrist and hand (S60.-)")

Nearby codes

• S60.420 Blister (nonthermal) of right index finger
• S60.420A Blister (nonthermal) of right index finger, initial encounter
• S60.420D Blister (nonthermal) of right index finger, subsequent encounter
• S60.420S Blister (nonthermal) of right index finger, sequela
• S60.421 Blister (nonthermal) of left index finger
• S60.421A Blister (nonthermal) of left index finger, initial encounter (this code)
• S60.421D Blister (nonthermal) of left index finger, subsequent encounter
• S60.421S Blister (nonthermal) of left index finger, sequela
• S60.422 Blister (nonthermal) of right middle finger
• S60.422A Blister (nonthermal) of right middle finger, initial encounter
• S60.422D Blister (nonthermal) of right middle finger, subsequent encounter