S20.229A Contusion of unspecified back wall of thorax, initial encounter

Billable ICD-10-CM code, FY2026.

Built from S20.229 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

Diagnosis Index entries for S20.229A

• Contusion (skin surface intact) › interscapular region

Nearby codes

• S20.224 Contusion of middle back wall of thorax
• S20.224A Contusion of middle back wall of thorax, initial encounter
• S20.224D Contusion of middle back wall of thorax, subsequent encounter
• S20.224S Contusion of middle back wall of thorax, sequela
• S20.229 Contusion of unspecified back wall of thorax
• S20.229A Contusion of unspecified back wall of thorax, initial encounter (this code)
• S20.229D Contusion of unspecified back wall of thorax, subsequent encounter
• S20.229S Contusion of unspecified back wall of thorax, sequela
• S20.3 Other and unspecified superficial injuries of front wall of thorax
• S20.30 Unspecified superficial injuries of front wall of thorax
• S20.301 Unspecified superficial injuries of right front wall of thorax