ICD-10 Code A01.05 – Typhoid osteomyelitis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code A01.05 – Typhoid osteomyelitis
What it is
Typhoid osteomyelitis is a bone infection caused by Salmonella Typhi or related typhoid fever infection. Use this code when the record clearly links osteomyelitis to typhoid.
Clinical signs
Expect localized bone pain, tenderness, swelling, and sometimes fever or systemic illness. Imaging or culture may support the diagnosis; clinical features vary, so refer to documentation.
When to use this code
Use A01.05 when the provider documents osteomyelitis as a complication of typhoid fever or typhoid infection. It is appropriate when the site is bone and the causal link is stated or clearly implied. Check documentation if the record only says Salmonella infection without typhoid.
Do not use for
Do not use this code for nonspecific osteomyelitis, traumatic bone infection, or Salmonella infections not documented as typhoid-related. Do not assume typhoid etiology without support.
Coding tip
Code the typhoid cause only when the provider documents the relationship; otherwise, use the more specific documented infection, or check documentation.