C85.9 is the authoritative medical code for Non-Hodgkin lymphoma, unspecified. This classification is used in medical billing and clinical recording to specify the clinical criteria for non-hodgkin lymphoma, unspecified (ICD-10-CM C85.9), 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 C85.9 in the official ICD-10-CM tabular list.
Alternative terms the tabular list files under this code.
Conditions that can never be reported with this code; the two are mutually exclusive.
Conditions not covered by this code, but which may be reported alongside it when both are present.
No. C85.9 (Non-Hodgkin lymphoma, unspecified) 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, C85.9 must not be reported together with: other specified types of T/NK-cell lymphoma (C86.-); personal history of non-Hodgkin lymphoma (Z85.72).
Per official ICD-10-CM Excludes2 instructions, C85.9 and the following are not considered part of each other and may both be reported when both conditions are present: Kaposi's sarcoma of lymph nodes (C46.3); secondary and unspecified neoplasm of lymph nodes (C77.-); secondary neoplasm of bone marrow (C79.52); secondary neoplasm of spleen (C78.89).
Non-Hodgkin lymphoma, unspecified includes: Lymphoma NOS; Malignant lymphoma NOS; Non-Hodgkin lymphoma NOS.
Official ICD-10-CM classifications closest to C85.9 in its code family, with their registry titles.