A01.0

Non-Billable
ChapterA00–B99
Ranksubcategory
Official Description

Typhoid fever

Metadata & Insights
  • •2026 ICD-10-CM Edition - Effective October 1, 2025.
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 1: Certain Infectious and Parasitic Diseases (A00-B99).

Instructional Notes

Includes
  • Infection due to Salmonella typhi
General instructions are available for the parent sections:
View CH1 Notes

Clinical Hierarchy

CH1Certain infectious and parasitic diseases (A00-B99)
A00-A09Intestinal infectious diseases (A00-A09)
A01Typhoid and paratyphoid fevers
A01.0Typhoid fever
A01.00Typhoid fever, unspecified
A01.01Typhoid meningitis
A01.02Typhoid fever with heart involvement
A01.03Typhoid pneumonia
A01.04Typhoid arthritis
A01.05Typhoid osteomyelitis
A01.09Typhoid fever with other complications

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to A01.0:

chapterCH1
Certain infectious and parasitic diseases (A00-B99)
View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to A01.0. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

25 raw paths
Abscess (connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic)1 unique routes
post-typhoid→A01.0
Arthritis, arthritic (acute) (chronic) (nonpyogenic) (subacute)2 unique routes
due to or associated with
typhoid fever→A01.0
in (due to)
typhoid fever→A01.0
Cholangiolitis (acute) (chronic) (extrahepatic) (gangrenous) (intrahepatic)1 unique routes
typhoidal→A01.0
Cholecystitis1 unique routes
typhoidal→A01.0
Choledocholithiasis (common duct) (hepatic duct)1 unique routes
typhoidal→A01.0
Eberth's disease (typhoid fever)1 unique routes
Direct index entry→A01.0
Endocarditis (chronic) (marantic) (nonbacterial) (thrombotic) (valvular)2 unique routes
due to
typhoid (fever)→A01.0
typhoid→A01.0
Enteritis (acute) (diarrheal) (hemorrhagic) (noninfective)1 unique routes
typhosa→A01.0
Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor)10 unique routes
enteric→A01.0
gastroenteric→A01.0
typhogastric→A01.0
typhoid (abortive) (hemorrhagic) (intermittent) (malignant)→A01.0(7 variants)
complicated by(6 variants)
arthritis→A01.0
heart involvement→A01.0
meningitis→A01.0
osteomyelitis→A01.0
pneumonia→A01.0
specified NEC→A01.0
Fistula (cutaneous)1 unique routes
typhoid→A01.0
Glomerulonephritis1 unique routes
in (due to)
typhoid fever→A01.0
Infection, infected, infective (opportunistic)3 unique routes
Bacillus
typhosa→A01.0
Bacterium
typhosum→A01.0
Eberthella typhosa→A01.0

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

Find Procedures (ICD-10-PCS)

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