`S21.001S` Unspecified open wound of right breast, sequela

Billable ICD-10-CM code, FY2026.

Built from S21.001 with 7th character S (sequela).

Applies from S21 Open wound of thorax

Excludes1 (never code together)

traumatic amputation (partial) of thorax (S28.1)

Code also

any associated injury, such as:
injury of heart (S26.-)
injury of intrathoracic organs (S27.-)
rib fracture (S22.3-, S22.4-)
spinal cord injury (S24.0-, S24.1-)
traumatic hemopneumothorax (S27.3)
traumatic hemothorax (S27.1)
traumatic pneumothorax (S27.0)
wound infection

7th character note

The appropriate 7th character is to be added to each code from category S21

7th character required

A — initial encounter
D — subsequent encounter
S — sequela

Code annotations containing back-references to S21.001S

Back-references to S21

Code Also: S23.1 Subluxation and dislocation of thoracic vertebra ("open wound of thorax (S21.-)")
Code Also: S24 Injury of nerves and spinal cord at thorax level ("open wound of thorax (S21.-)")
Code Also: S25 Injury of blood vessels of thorax ("any associated open wound (S21.-)")
Code Also: S26 Injury of heart ("open wound of thorax (S21.-)")
Code Also: S27 Injury of other and unspecified intrathoracic organs ("any associated open wound of thorax (S21.-)")
Code Also: S29 Other and unspecified injuries of thorax ("any associated open wound (S21.-)")

Nearby codes

S21.0 Open wound of breast
S21.00 Unspecified open wound of breast
S21.001 Unspecified open wound of right breast
S21.001A Unspecified open wound of right breast, initial encounter
S21.001D Unspecified open wound of right breast, subsequent encounter
S21.001S Unspecified open wound of right breast, sequela (this code)
S21.002 Unspecified open wound of left breast
S21.002A Unspecified open wound of left breast, initial encounter
S21.002D Unspecified open wound of left breast, subsequent encounter
S21.002S Unspecified open wound of left breast, sequela
S21.009 Unspecified open wound of unspecified breast