A42 is the authoritative medical code for Actinomycosis. This classification is used in medical billing and clinical recording to specify the clinical criteria for actinomycosis (ICD-10-CM A42), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: NO. This is a clinician non-billable / parent hierarchy grouping in the ICD-10-CM system.
Sequencing, inclusion, and exclusion notes published for A42 in the official ICD-10-CM tabular list.
Conditions that can never be reported with this code; the two are mutually exclusive.
No. A42 (Actinomycosis) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.
Per official ICD-10-CM Excludes1 instructions, A42 must not be reported together with: actinomycetoma (B47.1).
Official ICD-10-CM classifications closest to A42 in its code family, with their registry titles.