ICD-10 Code M00.829 – Arthritis due to other bacteria, unspecified elbow (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code M00.829 – Arthritis due to other bacteria, unspecified elbow
What it is
This code identifies a bacterial infection causing arthritis in the elbow when the specific bacteria is not named and the laterality is unspecified. Use it for septic arthritis documented as due to other bacteria.
Clinical signs
Typical findings include a painful, swollen, warm elbow with limited range of motion. Fever or systemic illness may be present, but clinical features vary; refer to documentation.
When to use this code
Use M00.829 when the record clearly states bacterial arthritis of the elbow and does not identify the organism beyond “other bacteria.” It also applies when the elbow is documented but not left or right.
If the note confirms septic arthritis of the elbow with no more specific bacterial code available, this is the appropriate choice. Check documentation for laterality, organism detail, and whether another site is involved.
Do not use for
Do not use this code for noninfectious arthritis, gout, or unspecified joint pain. Do not use it when the organism or elbow side is documented more specifically.
Coding tip
Review the provider’s wording carefully; laterality and organism specificity can change the code.