ICD-10 Code M00.262 – Other streptococcal arthritis, left knee (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code M00.262 – Other streptococcal arthritis, left knee
What it is
This code identifies a streptococcal infection causing arthritis in the left knee that is not classified elsewhere. Use it when documentation specifies the organism as streptococcal and the affected joint as the left knee.
Clinical signs
Typical findings include a painful, swollen, warm knee with reduced range of motion. Clinical features vary; refer to documentation for evidence of infection and joint involvement.
When to use this code
Use M00.262 when the provider documents septic or infectious arthritis of the left knee due to a streptococcal species, and no more specific code applies. It may also fit when the note states “other streptococcal arthritis” with left-knee involvement. Check documentation if the organism is not clearly identified.
Do not use for
Do not use this code for noninfectious arthritis, unspecified arthritis, or arthritis caused by organisms other than streptococci. If the record does not confirm the left knee or streptococcal cause, check documentation.
Coding tip
Verify both the organism and laterality in the provider note before assigning M00.262.