Nondisp comminuted fx shaft of humerus, left arm, sequela

This code signifies a long-term complication or residual effect stemming from a previously sustained fracture of the shaft of the left humerus. The original fracture was comminuted (broken into multiple pieces) and nondisplaced (bone fragments remained in their anatomical alignment). The "sequela" indicates that the patient is now presenting with a condition directly attributable to this past injury, such as chronic pain, nonunion, malunion, or functional impairment.

Apply this code when documenting a patient encounter where the primary reason for the visit is a current problem or condition that is a direct consequence of a healed or healing nondisplaced comminuted fracture of the left humeral shaft. This includes situations like ongoing pain, limited range of motion, nerve damage, or vascular compromise that developed as a result of the original fracture.

• Always use this code as a secondary diagnosis, following the code for the specific sequela being treated (e.g., M84.422A for malunion).
• Ensure documentation clearly links the current condition to the previous left humeral shaft fracture.
• Do not use this code for the initial treatment of the acute fracture; it is exclusively for sequelae.