ICD-10 Code M00.221 – Other streptococcal arthritis, right elbow (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code M00.221 – Other streptococcal arthritis, right elbow
What it is
M00.221 identifies a streptococcal infection causing arthritis in the right elbow joint. Use it when documentation specifies the organism as streptococcal and the affected joint as the right elbow.
Clinical signs
Typical findings include a painful, swollen, warm elbow with reduced range of motion. Clinical features vary; refer to documentation for confirmed septic arthritis and streptococcal cause.
When to use this code
Use this code when the provider documents streptococcal arthritis involving the right elbow, including septic arthritis due to streptococcal species. It is appropriate when the joint site and organism are both clearly identified. If the record only says arthritis or joint infection, check documentation.
Do not use for
Do not use it for noninfectious arthritis, unspecified septic arthritis, or streptococcal infection in another joint. Do not assume laterality or organism from culture results alone without provider documentation.
Coding tip
Verify both the right elbow site and the streptococcal etiology before assigning M00.221.