Other acute osteomyelitis, left radius and ulna

This code signifies an acute infection of the bone and bone marrow (osteomyelitis) affecting both the radius and ulna in the patient's left forearm. This condition is typically caused by bacteria and can lead to significant pain, swelling, and functional impairment of the limb.

This code is appropriate for cases of newly diagnosed or rapidly progressing osteomyelitis of the left radius and ulna, where the infection is not specified as being due to a prosthetic joint, post-traumatic, or with other specific causes. Documentation should clearly indicate "acute" osteomyelitis, specify the left forearm, and identify involvement of both the radius and ulna.

• Ensure documentation explicitly states "acute" and specifies the left radius and ulna. Do not use for chronic osteomyelitis.
• Differentiate from post-traumatic osteomyelitis (T84.6x series) or osteomyelitis associated with prosthetic joints (T84.5x series).
• Always sequence this code as a primary diagnosis when it is the reason for the encounter, or as a secondary diagnosis if it is a co-morbidity affecting treatment.