ICD-10 code for rib fracture

The ICD-10-CM code for rib fracture is M84.48 (Pathological fracture, other site).

Within M84.4, choose M84.48 (other site) only when documentation doesn't support a more specific option: unspecified site (M84.40), shoulder (M84.41), humerus (M84.42), ulna and radius (M84.43), hand and fingers (M84.44), femur and pelvis (M84.45), tibia and fibula (M84.46) and ankle, foot and toes (M84.47).

Codes in this range require a 7th character: A for initial encounter for fracture, D for subsequent encounter for fracture with routine healing, G for subsequent encounter for fracture with delayed healing, K for subsequent encounter for fracture with nonunion, P for subsequent encounter for fracture with malunion and S for sequela. Use placeholder "X" characters to fill any empty positions before the 7th character.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.