Diagnosis Code: 850.9

Short Description: Concussion NOS

Long Description: Concussion, unspecified

Code Classification:

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

Code Version: 2015 ICD-9-CM

References to Index of Diseases and Injuries

The code 850.9 has the following ICD-9-CM references to the Index of Diseases and Injuries

• Blast
  • injury 869.0
    • brain (see also Concussion, brain) 850.9
      • with skull fracture - see Fracture, skull

• Commotio (current)
  • cerebri (see also Concussion, brain) 850.9
    • with skull fracture - see Fracture, skull, by site

• Commotion (current)
  • brain (without skull fracture) (see also Concussion, brain) 850.9
    • with skull fracture - see Fracture, skull, by site

• 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
    • mental confusion or disorientation (without loss of consciousness) 850.0
      • with loss of consciousness - see Concussion, with, loss of consciousness
  • without loss of consciousness 850.0
  • blast (air) (hydraulic) (immersion) (underwater) 869.0
    • with open wound into cavity 869.1
    • abdomen or thorax - see Injury, internal, by site
    • brain - see Concussion, brain
    • ear (acoustic nerve trauma) 951.5
      • with perforation, tympanic membrane - see Wound, open, ear drum
    • thorax - see Injury, internal, intrathoracic organs NEC
  • 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
      • mental confusion or disorientation (without loss of consciousness) 850.0
        • with loss of consciousness - see Concussion, brain, with, loss of consciousness
      • skull fracture - see Fracture, skull, by site
    • without loss of consciousness 850.0
  • cauda equina 952.4
  • cerebral - see Concussion, brain
  • conus medullaris (spine) 952.4
  • hydraulic - see Concussion, blast
  • internal organs - see Injury, internal, by site
  • labyrinth - see Injury, intracranial
  • ocular 921.3
  • osseous labyrinth - see Injury, intracranial
  • spinal (cord) - see also Injury, spinal, by site
    • due to
      • broken
        • back - see Fracture, vertebra, by site, with spinal cord injury
        • neck - see Fracture, vertebra, cervical, with spinal cord injury
      • fracture, fracture dislocation, or compression fracture of spine or vertebra - see Fracture, vertebra, by site, with spinal cord injury
  • syndrome 310.2
  • underwater blast - see Concussion, blast

• Encephalopathy (acute) 348.30
  • due to
    • trauma (postconcussional) 310.2
      • current (see also Concussion, brain) 850.9
        • with skull fracture - see Fracture, skull, by site, with intracranial injury
  • traumatic (postconcussional) 310.2
    • current (see also Concussion, brain) 850.9
      • with skull fracture - see Fracture, skull, by site, with intracranial injury

Crosswalk Information

The code 850.9 converts into the following ICD-10 code(s):

Similar Codes

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

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