ICD-10-CM Tabular Index · Chapter 1 · FY 2027 A03

Shigellosis (A03) ICD-10-CM

The A03 code range covers shigellosis with 7 ICD-10-CM diagnosis codes. 6 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.

✓ Built from the official CMS FY 2027 datasetEffective Oct 1, 2026 – Sep 30, 2027
7
Diagnosis Codes
6
Billable Codes
A03
Code Range
A00–A09
Parent Section
ICD-10-CM

Codes in the A03 Range 7 codes · 6 billable

7 of 7 shown
  • A03 ShigellosisNon-billable
  • A03.0 Shigellosis due to Shigella dysenteriae
  • A03.1 Shigellosis due to Shigella flexneri
  • A03.2 Shigellosis due to Shigella boydii
  • A03.3 Shigellosis due to Shigella sonnei
  • A03.8 Other shigellosis
  • A03.9 Shigellosis, unspecified

Clinical Terms in This Code Range

Definitions from the National Library of Medicine for conditions coded in the A03 range.

Shigellosis

An intestinal disease cause by Shigella bacteria.

About the A03 Code Range

Shigellosis is an intestinal disease caused by Shigella bacteria. It belongs to the intestinal infectious diseases group.

The subdivisions distinguish infections caused by Shigella dysenteriae (A03.0), Shigella flexneri (A03.1), Shigella boydii (A03.2) and Shigella sonnei (A03.3). They also include other shigellosis (A03.8) and shigellosis with no type specified (A03.9).

Questions About This Page

How many billable codes are in the A03 range?

Of the 7 codes in this range, 6 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.

What does the A03 range classify?

The range classifies shigellosis. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.

Related References

Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.