ICD-10 Code M00.059 – Staphylococcal arthritis, unspecified hip (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code M00.059 – Staphylococcal arthritis, unspecified hip
What it is
This code identifies a staphylococcal infection of the hip joint causing septic arthritis, but the hip side is not specified. Use it when documentation confirms staphylococcal arthritis and does not state left or right.
Clinical signs
Typical findings include acute hip pain, limited range of motion, and difficulty bearing weight. Fever or other systemic signs may occur; clinical features vary, so refer to documentation.
When to use this code
Use M00.059 when the provider documents staphylococcal arthritis involving the hip and laterality is not recorded. It also fits when the chart confirms septic arthritis due to Staphylococcus but does not specify which hip.
Check documentation for the organism, joint involved, and whether the hip is unspecified versus documented as bilateral or another site. Code only when the diagnosis is established, not merely suspected.
Do not use for
Do not use this code for nonstaphylococcal septic arthritis, traumatic joint pain, or osteoarthritis of the hip. If the hip side is documented, choose the laterality-specific code instead.
Coding tip
Verify both the causative organism and the joint laterality before assigning M00.059.