A00.9 Cholera, 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) 371-373 in MDC 06.

Approximate ICD-9-CM (GEMs)

• 001.9 Cholera, unspecified

Code annotations containing back-references to A00.9

Back-references to A00

• Code Also: D81.82 Activated Phosphoinositide 3-kinase Delta Syndrome [APDS] ("other infections (A00-B99)")
• Type 2 Excludes: L97 Non-pressure chronic ulcer of lower limb, not elsewhere classified ("specific infections classified to A00-B99")
• Type 2 Excludes: L98.4 Non-pressure chronic ulcer of skin, not elsewhere classified ("specific infections classified to A00-B99")
• Type 2 Excludes: L98.A Non-pressure chronic ulcer of upper limb, not elsewhere classified ("specific infections classified to A00-B99")
• Type 2 Excludes: P37 Other congenital infectious and parasitic diseases ("infectious neonatal diarrhea (A00-A09)")
• Type 1 Excludes: T88.7 Unspecified adverse effect of drug or medicament ("specified adverse effects of drugs and medicaments (A00-R94 and T80-T88.6, T88.8)")

Diagnosis Index entries for A00.9

• Cholera (Asiatic) (epidemic) (malignant)
• Cholera (Asiatic) (epidemic) (malignant) › due to Vibrio cholerae 01

Nearby codes

• A00 Cholera
• A00.0 Cholera due to Vibrio cholerae 01, biovar cholerae
• A00.1 Cholera due to Vibrio cholerae 01, biovar eltor
• A00.9 Cholera, unspecified (this code)