ICD-10 Code B42.82 – Sporotrichosis arthritis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code B42.82 – Sporotrichosis arthritis
What it is
B42.82 identifies joint involvement caused by Sporothrix infection. Use it when sporotrichosis has spread to or is documented in a joint, producing infectious arthritis.
Clinical signs
Typical findings include joint pain, swelling, stiffness, and reduced range of motion. Clinical features vary; refer to documentation, especially when the diagnosis is based on culture, histology, or specialist assessment.
When to use this code
Use B42.82 when the provider documents sporotrichosis affecting a joint, including septic or infectious arthritis due to Sporothrix. It may be used when the joint manifestation is the primary documented site of infection. Check documentation if the record only mentions cutaneous or lymphocutaneous sporotrichosis without joint disease.
Do not use for
Do not use this code for uncomplicated skin or lymphatic sporotrichosis, or for nonspecific arthritis without a documented fungal cause. Check documentation when the organism or involved site is unclear.
Coding tip
Confirm that the record links the arthritis to sporotrichosis; otherwise, code the joint condition separately and verify the infection site.