850.5 CONCUSSION W COMA NOS


Code Information

Diagnosis Code: 850.5

Short Description: Concussion w coma NOS

Long Description: Concussion with loss of consciousness of unspecified duration

Code Classification:

  • Injury and poisoning (800–999)
    • Intracranial injury, excluding those with skull fracture (850-854)
      • 850 Concussion
        • 850.5 Concussion w coma NOS

Code Version: 2015 ICD-9-CM


References to Index of Diseases and Injuries

The code 850.5 has the following ICD-9-CM references to the Index of Diseases and Injuries
  • Concussion (current) 850.9
    • with
      • loss of consciousness 850.5
        • brief (less than one hour)
          • 30 minutes or less 850.11
          • 31-59 minutes 850.12
        • moderate (1-24 hours) 850.2
        • prolonged (more than 24 hours) (with complete recovery) (with return to pre-existing conscious level) 850.3
          • without return to pre-existing conscious level 850.4
    • brain or cerebral (without skull fracture) 850.9
      • with
        • loss of consciousness 850.5
          • brief (less than one hour)
            • 30 minutes or less 850.11
            • 31-59 minutes 850.12
          • moderate (1-24 hours) 850.2
          • prolonged (more than 24 hours) (with complete recovery) (with return to pre-existing conscious level) 850.3
            • without return to pre-existing conscious level 850.4
  • Injury 959.9
    • head NEC� 959.01
      • with
        • loss of consciousness 850.5

Crosswalk Information

The code 850.5 converts into the following ICD-10 code(s):
ICD-9 Code ICD-10 Code ICD-10 Description
850.5 Right Arrow S06.0X9A Concussion w loss of consciousness of unsp duration, init
This ICD-9 to ICD-10 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

ICD-9 Code ICD-9 Description
850.0 Concussion with no loss of consciousness
850.11 Concussion, with loss of consciousness of 30 minutes or less
850.12 Concussion, with loss of consciousness from 31 to 59 minutes
850.2 Concussion with moderate loss of consciousness
850.3 Concussion with prolonged loss of consciousness and return to pre-existing conscious level
850.4 Concussion with prolonged loss of consciousness, without return to pre-existing conscious level
850.9 Concussion, unspecified


This page was last updated on: 10/1/2014