ICD-10 A03.9
Billable / SpecificShigellosis, unspecified
About ICD-10-CM A03.9
ICD-10-CM code A03.9 represents Shigellosis, unspecified. This is a billable/specific code in the Infectious and Parasitic Diseases chapter (block A03). The 2026 edition of ICD-10-CM A03.9 became effective on October 1, 2025.
Inclusion Terms / Approximate Synonyms
Clinical terms and conditions classified under A03.9. Per CMS ICD-10-CM Tabular 2026.
- Bacillary dysentery NOS
Medicare LCD Coverage for A03.9
Local Coverage Determinations (LCDs) from CMS MACs that list A03.9 as a covered diagnosis.
Showing top 10 of 230 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing A03.9.
5 Medicare
CPT Codes Commonly Billed with A03.9
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
- 0031U CMS LCD: Billing and Coding: Pharmacogenomics Testing CMS LCD
- 0173U CMS LCD: Billing and Coding: Pharmacogenomics Testing CMS LCD
- 0423U CMS LCD: Billing and Coding: Pharmacogenomics Testing CMS LCD
- 81407 CMS LCD: Billing and Coding: Pharmacogenomics Testing CMS LCD
- 0349U CMS LCD: Billing and Coding: Pharmacogenomics Testing CMS LCD
- 81408 CMS LCD: Billing and Coding: Pharmacogenomics Testing CMS LCD
- 0175U CMS LCD: Billing and Coding: Pharmacogenomics Testing CMS LCD
- 0032U CMS LCD: Billing and Coding: Pharmacogenomics Testing CMS LCD
- 81220 CMS LCD: Billing and Coding: Pharmacogenomics Testing CMS LCD
- 0392U CMS LCD: Billing and Coding: Pharmacogenomics Testing CMS LCD
Convert A03.9 to ICD-9-CM
Per CMS General Equivalence Mappings (GEMs), useful for legacy data review and historical claim analysis.
| ICD-10 | ICD-9 | Mapping Flags |
|---|---|---|
| A03.9 | 0049 | 00000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To A03.9
Other codes in section A00-A09 (Intestinal infectious diseases).
ICD-10 A03.9, Billing FAQ
Is ICD-10 code A03.9 billable? +
Yes, A03.9 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What other names or terms map to A03.9? +
ICD-10 A03.9 includes: Bacillary dysentery NOS.
What CPT codes are commonly billed with A03.9? +
Procedures frequently paired with A03.9 include: 0031U, 0173U, 0423U, 81407, 0349U.
What ICD-9 codes does A03.9 map to? +
Per CMS GEMs, A03.9 maps to ICD-9 codes: 0049. Useful for legacy data review and historical claim analysis.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on July 16, 2026.
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