S61.159A Open bite of unspecified thumb with damage to nail, initial encounter

Billable ICD-10-CM code, FY2026.

Built from S61.159 with 7th character A (initial encounter).

Applies from S61 Open wound of wrist, hand and fingers

Excludes1 (never code together)

• open fracture of wrist, hand and finger (S62.- with 7th character B)
• traumatic amputation of wrist and hand (S68.-)

Code also

• any associated wound infection

7th character note

• The appropriate 7th character is to be added to each code from category S61

7th character required

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

Applies from S61.15 Open bite of thumb with damage to nail

Applicable to

• Bite of thumb with damage to nail NOS

Excludes1 (never code together)

• superficial bite of thumb (S60.36-, S60.37-)

Code annotations containing back-references to S61.159A

Back-references to S61.15

• Type 1 Excludes: S60.37 Other superficial bite of thumb ("open bite of thumb (S61.05-, S61.15-)")

Back-references to S61.1

• Type 1 Excludes: S61.0 Open wound of thumb without damage to nail ("open wound of thumb with damage to nail (S61.1-)")

Back-references to S61

• Type 2 Excludes: S51 Open wound of elbow and forearm ("open wound of wrist and hand (S61.-)")
• Code Also: S64 Injury of nerves at wrist and hand level ("any associated open wound (S61.-)")
• Code Also: S65 Injury of blood vessels at wrist and hand level ("any associated open wound (S61.-)")
• Code Also: S66 Injury of muscle, fascia and tendon at wrist and hand level ("any associated open wound (S61.-)")
• Use Additional: S67 Crushing injury of wrist, hand and fingers ("open wound of wrist and hand (S61.-)")

Nearby codes

• S61.152 Open bite of left thumb with damage to nail
• S61.152A Open bite of left thumb with damage to nail, initial encounter
• S61.152D Open bite of left thumb with damage to nail, subsequent encounter
• S61.152S Open bite of left thumb with damage to nail, sequela
• S61.159 Open bite of unspecified thumb with damage to nail
• S61.159A Open bite of unspecified thumb with damage to nail, initial encounter (this code)
• S61.159D Open bite of unspecified thumb with damage to nail, subsequent encounter
• S61.159S Open bite of unspecified thumb with damage to nail, sequela
• S61.2 Open wound of other finger without damage to nail
• S61.20 Unspecified open wound of other finger without damage to nail
• S61.200 Unspecified open wound of right index finger without damage to nail