A20.9Billable

Plague, unspecified

Chapter
1. Certain infectious and parasitic diseases
Category
A20
Effective date
October 1, 2026

Related codes in category A20

A20PlagueA20.0Bubonic plagueYesA20.1Cellulocutaneous plagueYesA20.2Pneumonic plagueYesA20.3Plague meningitisYesA20.7Septicemic plagueYesA20.8Other forms of plagueYes

Frequently asked questions

What is ICD-10 code A20.9?

A20.9 is an ICD-10-CM diagnosis code for Plague, unspecified.

Is A20.9 a billable code?

Yes. A20.9 is billable and specific enough to be used on a claim.

What ICD-10-CM chapter is A20.9 in?

A20.9 falls under Chapter 1: Certain infectious and parasitic diseases.

When did A20.9 become effective?

A20.9 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to A20.9?

A20.9 belongs to category A20, which includes 7 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.