Path fx in oth disease, unsp hand, subs for fx w delay heal

This code signifies a fracture of an unspecified hand bone that occurred due to an underlying disease process, not from trauma. The fracture is currently in a phase of delayed healing, meaning it is not progressing towards union at the expected rate. This code is used for follow-up encounters after the initial treatment of the fracture.

Apply this code when a patient presents for ongoing management of a pathological hand fracture, and documentation explicitly states "delayed healing" or similar terminology. The medical record must also indicate that the fracture is secondary to a systemic disease (e.g., osteoporosis, metastatic cancer) rather than a traumatic event. This code is appropriate for subsequent visits after the initial diagnosis and treatment.

• Ensure documentation clearly specifies "pathological fracture" and the underlying disease, even if the disease itself is coded separately.
• Verify that the encounter is for follow-up care and not the initial treatment of the fracture (which would use an A or D seventh character).
• Always sequence the underlying disease causing the pathological fracture before this code.