All ICD10 Codes

A20

Non-Billable
ChapterA00–B99
Rankcategory
Official Description

Plague

Use a more specific code (7 billable)
A20.0Bubonic plagueA20.1Cellulocutaneous plagueA20.2Pneumonic plagueA20.3Plague meningitisA20.7Septicemic plagueA20.8Other forms of plagueA20.9Plague, unspecified
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 1: Certain Infectious and Parasitic Diseases (A00-B99).

CH1 Parent Instructions

Includes
  • diseases generally recognized as communicable or transmissible
Excludes1(Not coded here. Use a different code.)
  • certain localized infections - see body system-related chapters
Excludes2(Not included here. Code separately if applicable.)
  • carrier or suspected carrier of infectious disease (Z22.-)
  • infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)
  • infectious and parasitic diseases specific to the perinatal period (P35-P39)
  • influenza and other acute respiratory infections (J00-J22)
Use Additional Code
  • code to identify resistance to antimicrobial drugs (Z16.-)

Instructional Notes

Includes
  • infection due to Yersinia pestis

Clinical Hierarchy

BillableHas subcodes
CH1Certain infectious and parasitic diseases (A00-B99)
A20-A28Certain zoonotic bacterial diseases (A20-A28)
A20PlagueNot billable
A20.0Bubonic plagueBillable
A20.1Cellulocutaneous plagueBillable
A20.2Pneumonic plagueBillable
A20.3Plague meningitisBillable
A20.7Septicemic plagueBillable
A20.8Other forms of plagueBillable
A20.9Plague, unspecifiedBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to A20:

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

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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