S20.402A Unspecified superficial injuries of left back wall of thorax, initial encounter

Billable ICD-10-CM code, FY2026.

Built from S20.402 with 7th character A (initial encounter).

Applies from S20 Superficial injury of thorax

7th character note

• The appropriate 7th character is to be added to each code from category S20

7th character required

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

Nearby codes

• S20.401 Unspecified superficial injuries of right back wall of thorax
• S20.401A Unspecified superficial injuries of right back wall of thorax, initial encounter
• S20.401D Unspecified superficial injuries of right back wall of thorax, subsequent encounter
• S20.401S Unspecified superficial injuries of right back wall of thorax, sequela
• S20.402 Unspecified superficial injuries of left back wall of thorax
• S20.402A Unspecified superficial injuries of left back wall of thorax, initial encounter (this code)
• S20.402D Unspecified superficial injuries of left back wall of thorax, subsequent encounter
• S20.402S Unspecified superficial injuries of left back wall of thorax, sequela
• S20.409 Unspecified superficial injuries of unspecified back wall of thorax
• S20.409A Unspecified superficial injuries of unspecified back wall of thorax, initial encounter
• S20.409D Unspecified superficial injuries of unspecified back wall of thorax, subsequent encounter