ICD-10 Code M00.07 – Staphylococcal arthritis, ankle and foot (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code M00.07 – Staphylococcal arthritis, ankle and foot
What it is
M00.07 identifies a staphylococcal infection of a joint in the ankle or foot. Use it when documentation states septic arthritis due to Staphylococcus in these joints.
Clinical signs
Typical findings include acute joint pain, swelling, warmth, and reduced range of motion. Clinical features vary; refer to documentation, and confirm the affected joint is the ankle or foot.
When to use this code
Use M00.07 when the provider documents staphylococcal septic arthritis involving the ankle or foot, including left, right, or unspecified side if laterality is not reported. You may need additional codes for the infecting organism if the record specifies it separately. Check documentation for the exact joint and causative organism.
Do not use for
Do not use this code for noninfectious arthritis, gout, or cellulitis without joint involvement. Check documentation if the record describes another joint or a different infectious agent.
Coding tip
Verify both the organism and the joint site before assigning M00.07.