A44.9 Bartonellosis, unspecified

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.

MS-DRG index

Defines the logic of DRG(s) 867-869 in MDC 18.

Approximate ICD-9-CM (GEMs)

• 088.0 Bartonellosis (approximate)

Diagnosis Index entries for A44.9

• Bartonellosis

Nearby codes

• A44 Bartonellosis
• A44.0 Systemic bartonellosis
• A44.1 Cutaneous and mucocutaneous bartonellosis
• A44.8 Other forms of bartonellosis
• A44.9 Bartonellosis, unspecified (this code)