A20.9
BillablePlague, unspecified
Plague, unspecified
Coding Notes
Includes
Conditions included under this code
- diseases generally recognized as communicable or transmissible
- infection due to Yersinia pestis
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
- certain localized infections - see body system-related chapters
Excludes 2
Conditions not included here, but the patient may have both
Use Additional Code
Additional codes that should follow this code
Related Codes(6)
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(30)
SNOMED CT
UMLS
- Infection by Yersinia pestisC0032064
- PestC0032064
- Pestilential feverC0032064
- PlagueC0032064
- Plague (disorder)C0032064
- Plague, unspecifiedC0032064
- Unspecified plagueC0032064
- Yersinia pestis InfectionC0032064
- Yersinia pestis diseaseC0032064
- Yersinia pestis infectionC0032064
- infection due to Yersinia pestisC0032064
- pestC0032064
- pestilential feverC0032064
- plagueC0032064
- plaguesC0032064
Clinical Terms
- Black death
- Infection by Yersinia pestis
- Yersinia pestis Infection
- Yersinia pestis disease
- pestilential fever
- Unspecified plague
- pest
- plagues
- infection due to Yersinia pestis
- Plague (disorder)
Frequently Asked Questions
What is the ICD-10 code for plague, unspecified?
The ICD-10-CM code for plague, unspecified is A20.9. The full clinical description is "Plague, unspecified". A20.9 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code A20.9 mean?
ICD-10-CM code A20.9 represents “Plague, unspecified”. It is classified under Chapter 1: Certain Infectious and Parasitic Diseases and is a billable/specific code that can be used on a claim.
Is A20.9 a billable code?
Yes, A20.9 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is A20.9 in?
A20.9 is in Chapter 1: Certain Infectious and Parasitic Diseases (codes A00-B99).
What codes cannot be used with A20.9?
A20.9 has Excludes1 notes indicating codes that cannot be used together with it, including: certain localized infections - see body system-related chapters.
Are additional codes required with A20.9?
Yes, when using A20.9, also report: resistance to antimicrobial drugs (Z16.-).
What SNOMED CT codes does A20.9 map to?
A20.9 maps to 1 SNOMED CT concept: 58750007. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for A20.9?
A20.9 is linked to 1 UMLS Concept Unique Identifier: C0032064. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does A20.9 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like plague, unspecified affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of A20.9?
A20.9 maps to the ICD-11 code: 1B93.Z (Plague, unspecified).
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.