A01.00 Typhoid fever, unspecified

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

Applies from A01.0 Typhoid fever

Applicable to

• Infection due to Salmonella typhi

MS-DRG index

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

Approximate ICD-9-CM (GEMs)

• 002.0 Typhoid fever (approximate)

Code annotations containing back-references to A01.00

Back-references to A01

• Code First: M49 Spondylopathies in diseases classified elsewhere ("enterobacterial infections (A01-A04)")
• Type 2 Excludes: P37 Other congenital infectious and parasitic diseases ("infectious neonatal diarrhea (A00-A09)")

Diagnosis Index entries for A01.00

• Eberth's disease (typhoid fever)
• Enteritis (acute) (diarrheal) (hemorrhagic) (noninfective) › typhosa
• Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor) › enteric
• Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor) › gastroenteric
• Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor) › typhogastric
• Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor) › typhoid (abortive) (hemorrhagic) (intermittent) (malignant)
• Infection, infected, infective (opportunistic) › Bacillus › typhosa
• Infection, infected, infective (opportunistic) › Bacterium › typhosum
• Infection, infected, infective (opportunistic) › Eberthella typhosa
• Typhoid (abortive) (ambulant) (any site) (clinical) (fever) (hemorrhagic) (infection) (intermittent) (malignant) (rheumatic) (Widal negative)
• Typhomania

Nearby codes

• A01 Typhoid and paratyphoid fevers
• A01.0 Typhoid fever
• A01.00 Typhoid fever, unspecified (this code)
• A01.01 Typhoid meningitis
• A01.02 Typhoid fever with heart involvement
• A01.03 Typhoid pneumonia
• A01.04 Typhoid arthritis
• A01.05 Typhoid osteomyelitis