ICD-10 Code M00.239 – Other streptococcal arthritis, unspecified wrist (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code M00.239 – Other streptococcal arthritis, unspecified wrist
What it is
M00.239 identifies a streptococcal infection of the wrist joint when the organism is not otherwise specified as a particular streptococcal type. Use it for septic arthritis affecting an unspecified wrist.
Clinical signs
Typical findings include acute wrist pain, swelling, warmth, and reduced range of motion. Clinical features vary; refer to documentation for evidence of joint infection and the streptococcal cause.
When to use this code
Use this code when the record documents streptococcal arthritis in an unspecified wrist and does not name a more specific streptococcal organism. It fits cases where laterality is not stated or the wrist is documented only as unspecified. Confirm that the provider identifies the infection as joint involvement, not cellulitis or tenosynovitis.
Do not use for
Do not use it for nonstreptococcal septic arthritis or for infections limited to surrounding soft tissue. Check documentation if the wrist side is known and a more specific code is available.
Coding tip
Match the organism and joint site exactly in the note before assigning M00.239.