Convert ICD-10 S66.399A to ICD-9

Type an ICD-9 or ICD-10 code or code description into the search box to convert the code. For example: 789.00 (ICD-9) or R10.0 (ICD-10).

The crosswalk between ICD-10 S66.399A other injury of extensor muscle, fascia and tendon of unspecified finger at wrist and hand level, initial encounter to ICD-9 is based based on the General Equivalence Mappings (GEMS) information:

ICD-10 Code ICD-9 Code
S66.399A - Inj extensor musc/fasc/tend unsp finger at wrs/hnd lv, init959.3 - Elb/forearm/wrst inj NOS
S66.399A - Inj extensor musc/fasc/tend unsp finger at wrs/hnd lv, init959.4 - Hand injury NOS

The General Equivalence Mappings (GEMS) is a useful tool for code to code translation for both ICD-10 and ICD-9 code sets. The conversion tool offers acceptable translation alternatives wherever possible.
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.
GEM Definitions:

  • Approximate Flag - The approximate flag is on, indicating that the relationship between the code in the source system and the code in the target system is an approximate equivalent.
  • No Map Flag - The no map flag indicates that a code in the source system is not linked to any code in the target system.
  • Combination Flag - The combination flag indicates that more than one code in the target system is required to satisfy the full equivalent meaning of a code in the source system.