Stress fracture, other site, initial encounter for fracture

This code signifies a stress fracture occurring in an anatomical location other than those specifically classified elsewhere (e.g., femur, tibia, metatarsal). A stress fracture is a hairline crack in bone caused by repetitive microtrauma, often due to overuse or increased activity, rather than a single acute injury. This particular code is for the initial treatment or evaluation of such a fracture.

Apply this code when documentation clearly indicates a stress fracture in an "other specified" bone, such as a rib, fibula, or carpal bone, and the patient is receiving initial active treatment for the fracture. This includes initial evaluation, surgical repair, or casting/splinting. Ensure the physician's notes confirm the fracture etiology as stress-related.

• Differentiate from pathological fractures (M84.4-) and other types of fractures (e.g., traumatic, M80-M82).
• Always confirm the specific anatomical site of the stress fracture to ensure "other site" is appropriate.
• The "A" in the seventh character indicates an initial encounter; subsequent care will require different seventh characters (D for subsequent, S for sequela).