ICD-10 Code M00.031 – Staphylococcal arthritis, right wrist (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code M00.031 – Staphylococcal arthritis, right wrist
What it is
This code identifies a staphylococcal infection causing septic arthritis in the right wrist joint. Use it when documentation specifies the organism as Staphylococcus and the affected joint is the right wrist.
Clinical signs
Typical findings include a painful, swollen, warm, and tender wrist with reduced range of motion. Clinical features vary; refer to documentation for confirmed septic arthritis and organism identification.
When to use this code
Use this code when the provider documents staphylococcal septic arthritis involving the right wrist, whether from aspiration, culture, or clear clinical diagnosis. It also fits cases described as pyogenic arthritis of the right wrist when Staphylococcus is identified. If the organism or laterality is not documented, check documentation before assigning this code.
Do not use for
Do not use this code for noninfectious arthritis, unspecified joint infection, or arthritis in another wrist or joint. Check documentation if the record does not confirm Staphylococcus or the right side.
Coding tip
Verify both the organism and laterality in the final provider note before coding.