M86.531

HCC Category Mapping

What This Code Means

A chronic bone infection of the right forearm bones (radius and ulna) that developed from a bloodstream infection.

Coding Tips

• •This code encompasses both forearm bones together; if only one bone is affected, document which one for clinical clarity
• •Use M86.532 for left-sided forearm infections

Clinical Significance

Other chronic hematogenous osteomyelitis of the right radius and ulna indicates a blood-borne bone infection that has become chronic, affecting both forearm bones on the right side. This condition represents systemic infection with bilateral forearm bone involvement requiring prolonged antibiotic therapy and monitoring, significantly impacting forearm rotation, grip strength, and overall upper extremity function.

Documentation Requirements

• ✓Clear documentation of chronic osteomyelitis diagnosis
• ✓Evidence of hematogenous (blood-borne) origin or spread
• ✓Specific identification of right radius and ulna involvement
• ✓Laboratory evidence of systemic infection or positive blood cultures
• ✓Confirmation of chronic duration and treatment history
• ✓Treatment protocols including IV antibiotic regimens
• ✓Imaging studies showing right radius and ulna bone infection
• ✓Assessment of forearm function, rotation, and grip strength

Commonly Confused Codes