Convert ICD-10 Code C85.91 to ICD-9

Source ICD-10 Code		Target ICD-9 Code
C85.91 Non-Hodgkin lymphoma, unsp, nodes of head, face, and neck		202.81 Lymphomas NEC head
Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code.

ICD-10 to ICD-9 crosswalk for code C85.91 - non-hodgkin lymphoma, unspecified, lymph nodes of head, face, and neck based on the most recent General Equivalence Mappings (GEMS) information.