S79.101K Unspecified physeal fracture of lower end of right femur, subsequent encounter for fracture with nonunion

Billable ICD-10-CM code, FY2026.

Built from S79.101 with 7th character K (subsequent encounter for fracture with nonunion).

Applies from S79 Other and unspecified injuries of hip and thigh

7th character note

• The appropriate 7th character is to be added to each code from subcategories S79.0 and S79.1

Notes

• A fracture not indicated as open or closed should be coded to closed

7th character required

• A — initial encounter for closed fracture
• D — subsequent encounter for fracture with routine healing
• G — subsequent encounter for fracture with delayed healing
• K — subsequent encounter for fracture with nonunion
• P — subsequent encounter for fracture with malunion
• S — sequela

Code annotations containing back-references to S79.101K

Back-references to S79.1

• Type 2 Excludes: S72.0 Fracture of head and neck of femur ("physeal fracture of lower end of femur (S79.1-)")
• Type 2 Excludes: S72.4 Fracture of lower end of femur ("physeal fracture of lower end of femur (S79.1-)")

Nearby codes

• S79.10 Unspecified physeal fracture of lower end of femur
• S79.101 Unspecified physeal fracture of lower end of right femur
• S79.101A Unspecified physeal fracture of lower end of right femur, initial encounter for closed fracture
• S79.101D Unspecified physeal fracture of lower end of right femur, subsequent encounter for fracture with routine healing
• S79.101G Unspecified physeal fracture of lower end of right femur, subsequent encounter for fracture with delayed healing
• S79.101K Unspecified physeal fracture of lower end of right femur, subsequent encounter for fracture with nonunion (this code)
• S79.101P Unspecified physeal fracture of lower end of right femur, subsequent encounter for fracture with malunion
• S79.101S Unspecified physeal fracture of lower end of right femur, sequela
• S79.102 Unspecified physeal fracture of lower end of left femur
• S79.102A Unspecified physeal fracture of lower end of left femur, initial encounter for closed fracture
• S79.102D Unspecified physeal fracture of lower end of left femur, subsequent encounter for fracture with routine healing