ICD-10 Code A01.04 – Typhoid arthritis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code A01.04 – Typhoid arthritis
What it is
Typhoid arthritis is joint inflammation that occurs as a complication of typhoid fever caused by Salmonella Typhi. Use this code when the record specifically links arthritis to typhoid infection.
Clinical signs
Clinical features vary; refer to documentation. Records may note a painful, swollen, or tender joint in the setting of confirmed or suspected typhoid fever, with no better alternative explanation.
When to use this code
Use A01.04 when the provider documents typhoid arthritis, septic arthritis due to typhoid, or joint involvement as a complication of typhoid fever. Code it only when the chart clearly connects the arthritis to the typhoid infection. If the joint problem is described separately, check documentation.
Do not use for
Do not use this code for generic arthritis, reactive arthritis, or joint pain without a documented typhoid cause. Also avoid it when typhoid fever is not mentioned or the diagnosis is uncertain.
Coding tip
Verify that the provider explicitly states the typhoid link before assigning A01.04.