ICD-10 C8121 Code Mapping

Terms & Definitions

Alternative: Single ICD-9 code reproduces the complete meaning of one ICD-10 code. Cluster: Multiple ICD-9 codes representing single ICD-10 code. At times it requires multiple ICD-9 codes combined to reproduce the complete meaning of one ICD-10 code. Mapping Types: "Single Code-to-Single Code", "Single Code-to-Cluster", "Cluster-to-Single Code". Note: More than one ICD-9 code (cluster) may be a valid translation of a given ICD-10 code. Which one of those ICD-9 codes (clusters) is the most correct translation must be determined based on the clinical case.

ICD-10 C8121 (Diagnosis) to ICD-9 Mapping Options

Source ICD-10	Mapping Type	Target ICD-9
Recommended Mapping (based on statistical analysis)
C8121 (Diagnosis) - Mixed cellular Hodgkin lymph, nodes of head, face, and neck (Mixed cellularity Hodgkin lymphoma, lymph nodes of head, face, and neck)	Single To Single	20161 (Diagnosis) - Hodgkins mix cell head (Hodgkin's disease, mixed cellularity, lymph nodes of head, face, and neck)
CMS/CDC General Equivalence Mappings
C8121 (Diagnosis) - Mixed cellular Hodgkin lymph, nodes of head, face, and neck (Mixed cellularity Hodgkin lymphoma, lymph nodes of head, face, and neck)	Single To Single	Alternative #1: 20161 (Diagnosis) - Hodgkins mix cell head (Hodgkin's disease, mixed cellularity, lymph nodes of head, face, and neck)