ICD-10 Code M00.229 – Other streptococcal arthritis, unspecified elbow (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code M00.229 – Other streptococcal arthritis, unspecified elbow
What it is
M00.229 identifies streptococcal arthritis affecting the elbow when the specific elbow side is not documented. It indicates an acute joint infection or inflammatory arthritis caused by streptococcal organisms.
Clinical signs
Typical findings include an acutely painful, swollen, warm elbow with reduced range of motion. Fever or systemic illness may occur, but clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents streptococcal arthritis in the elbow and does not specify right or left. It also fits when the elbow is clearly involved, but the record does not identify another more specific site.
If documentation names a different organism, a noninfectious arthritis, or a different joint, choose a more accurate code. Check documentation when the laterality or causative organism is unclear.
Do not use for
Do not use this code for septic arthritis caused by organisms other than streptococci or for chronic arthropathies without infection. Do not assign it when the elbow side is specified and a more specific code is available.
Coding tip
Confirm both the organism and the elbow joint in the note before coding, and query for laterality if the documentation supports it.