ICD-10-CM Diagnosis Code (2025)
Official Description for R40.23
Coma scale, best motor response
Coding Notes & Guidelines for R40.23
Coma scale motor score of 1
- Abnormal extensor posturing to pain or noxious stimuli (< 2 years of age)
- Coma scale motor score of 2
- Extensor posturing to pain or noxious stimuli (2-5 years of age)
- Abnormal flexure posturing to pain or noxious stimuli (2-5 years of age)
- Coma scale motor score of 3
- Flexion/decorticate posturing (< 2 years of age)
- Coma scale motor score of 4
- Withdraws from pain or noxious stimuli (2-5 years of age)
- Coma scale motor score of 5
- Localizes pain (2-5 years of age)
- Withdraws to touch (< 2 years of age)
- Coma scale motor score of 6
- Normal or spontaneous movement (< 2 years of age)
- Obeys commands (2-5 years of age)
The following appropriate 7th character is to be added to subcategory R40.23-:
- 0: unspecified time
- 1: in the field [EMT or ambulance]
- 2: at arrival to emergency department
- 3: at hospital admission
- 4: 24 hours or more after hospital admission
Parent Code (Less Specific):
About ICD-10-CM Code R40.23 (Coma scale)
ICD-10-CM code R40.23 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM R40.23 became effective on October 1, 2024.
This page provides detailed information about R40.23 - Coma scale, best motor response. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Coma scale related to best motor response.