ICD-10-CM 2027
ICD-10 code for Amarillic typhus
From the official ICD-10-CM alphabetic index entry “Typhus (fever) › amarillic”. Page updated September 29, 2026.
About coding Amarillic typhus
The ICD-10-CM code for Amarillic typhus is A95.9 (Yellow fever, unspecified).
Within A95, choose A95.9 (unspecified) only when documentation doesn't support a more specific option: Sylvatic yellow fever (A95.0) and urban yellow fever (A95.1).
As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.
In MS-DRG v44.0, it is part of the grouping logic for DRG 865 (Viral Illness with MCC, relative weight 1.3485) and DRG 866 (Viral Illness without MCC, relative weight 0.8692), in MDC 18 (Infectious and Parasitic Diseases, Systemic or Unspecified Sites), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
Common questions about Amarillic typhus ICD-10 codes
What is the ICD-10 code for Amarillic typhus?
- A95.9 — Yellow fever, unspecified.
Is A95.9 billable?
- Yes. A95.9 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can A95.9 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict A95.9 as a principal diagnosis.
Is A95.9 a CC or MCC?
- A95.9 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.