A43 Nocardiosis

⚠ Non-Billable ICD-10-CM 2026
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The ICD-10-CM code for Nocardiosis is A43 (FY2026). It is a non-billable category code — select a more specific code below for claims.

Classification

Section
A30-A49: Other bacterial diseases (A30-A49)
Category A43
5 codes (4 billable)
FY2026 Status
Stable since FY2024

Official Coding Guidelines

HIV Infections (TOC entry)

a. Human Immunodeficiency Virus (HIV) Infections .............................................................. 19

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.1.a
Infectious agents causing diseases in other chapters (TOC)

b. Infectious agents as the cause of diseases classified to other chapters ................................. 22

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.1.b

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

Cite This Page

Reference A43 with the canonical source and edition:

A43 — Nocardiosis. ICD-10 Coding Pro (ICD-10-CM FY2026). https://icd10codingpro.com/codes/A43

Canonical URL: https://icd10codingpro.com/codes/A43

Related Codes

All Codes in A43

Every most-specific code under A43 Nocardiosis (4 codes):

Show the complete A43 code list
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Reviewed by Prajwal Shrestha, CPC, CRC
Certified Professional Coder (CPC) and Certified Risk Adjustment Coder (CRC) · AAPC Member ID 01997614 · About · Editorial policy · Content last reviewed: 2025-10-01

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