C80 is the authoritative medical code for Malignant neoplasm without specification of site. This classification is used in medical billing and clinical recording to specify the clinical criteria for malignant neoplasm without specification of site (ICD-10-CM C80), 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 C80 in the official ICD-10-CM tabular list.
Conditions that can never be reported with this code; the two are mutually exclusive.
No. C80 (Malignant neoplasm without specification of site) 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, C80 must not be reported together with: malignant carcinoid tumor of unspecified site (C7A.00); malignant neoplasm of specified multiple sites- code to each site.
Official ICD-10-CM classifications closest to C80 in its code family, with their registry titles.