E966Assault by cutting and piercing instrument
- Legacy / Not Valid for Submission
- Replaced October 1, 2015
- External Cause (E Code)
E966 is a legacy ICD-9-CM external cause code (E code) that described assault by cutting and piercing instrument. It was valid on U.S. claims through September 30, 2015 and cannot be reported for services on or after October 1, 2015, when ICD-10-CM replaced the ICD-9 code set. Under the CMS General Equivalence Mappings, its ICD-10-CM replacement is X99.9XXA (Assault by unspecified sharp object, initial encounter), flagged as an approximate match.
Code Identity
ICD-10-CM Replacement
Based on the final CMS General Equivalence Mappings (GEMs), E966 crosswalks to the following ICD-10-CM code.
| ICD-10-CM Code | Description | Match |
|---|---|---|
| X99.9XXA | Assault by unspecified sharp object, initial encounter | Approximate |
Questions About E966
Is E966 (assault by cutting and piercing instrument) still a valid code?
No. This code belonged to ICD-9-CM, which the United States retired after September 30, 2015. Claims with dates of service on or after October 1, 2015 must use ICD-10-CM codes, such as its replacement X99.9XXA.
What is the ICD-10 replacement for E966?
The General Equivalence Mappings crosswalk this code to ICD-10-CM X99.9XXA (Assault by unspecified sharp object, initial encounter). The match is flagged as approximate, so confirm it against the clinical documentation before use.
What did E966 mean?
In the final ICD-9-CM release, this code described assault by cutting and piercing instrument. It sat in block E966 Assault by cutting and piercing instrument under External causes of injury (V).
