A49.2
✓ BillableHemophilus influenzae infection, unspecified site
Certain infectious and parasitic diseases (A00-B99)
❌ Excludes1
inheritedRules inherited from parent codes in the hierarchy.
- • bacterial agents as the cause of diseases classified elsewhere (B95-B96)
- • chlamydial infection NOS (A74.9)
- • meningococcal infection NOS (A39.9)
- • rickettsial infection NOS (A79.9)
- • spirochetal infection NOS (A69.9)
Clinical Description
ICD-10-CM code A49.2 represents hemophilus influenzae infection, unspecified site. This code falls under the Certain infectious and parasitic diseases (A00-B99) classification. It is a billable/specific code valid for HIPAA-covered transactions as of October 1, 2025 (FY2026). This code can be used to indicate a diagnosis for reimbursement purposes on insurance claims.
This is a 5-character code at the 4th level of specificity. This is the most specific code available in this subcategory. Coders should note that A49.2 has 5 Excludes1 restriction(s) — codes that cannot be reported together on the same claim.
Frequently Asked Questions
What is ICD-10 code A49.2?
ICD-10-CM code A49.2 is "Hemophilus influenzae infection, unspecified site". It belongs to the category: Certain infectious and parasitic diseases (A00-B99).
Is A49.2 a billable ICD-10 code?
Yes, A49.2 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
What codes are excluded with A49.2?
A49.2 has 5 Excludes1 rule(s). These codes are mutually exclusive and cannot be coded together on the same claim.
Related Codes in A49
Other codes in the same category that may be relevant for differential coding:
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Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)