R40.2320 — Coma scale, best motor response, extension, unspecified time
R40.2320 is a billable, specific ICD-10-CM code for coma scale, best motor response, extension, unspecified time. It is valid for submission on a claim.
7th character "0" — unspecified time
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
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- 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)
Risk adjustment
R40.2320 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:
- HCC 202 Coma, Brain Compression/Anoxic Damage0.543 RAF
Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score.
Medicare coverage
R40.2320 is named in 14 Medicare coverage policies — 14 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A54799Billing and Coding: Urine Drug Testing
- A55001Billing and Coding: Urine Drug Testing
- A56612Billing and Coding: CT of the Head
- A56771Billing and Coding: Special Electroencephalography
Related codes at this level
Codes that share R40.232. If R40.2320 is not quite right, the correct code is usually one of these.
- R40.2321Coma scale, best motor response, extension, in the field [EMT or ambulance]
- R40.2322Coma scale, best motor response, extension, at arrival to emergency department
- R40.2323Coma scale, best motor response, extension, at hospital admission
- R40.2324Coma scale, best motor response, extension, 24 hours or more after hospital admission
Questions about R40.2320
- Is R40.2320 a billable ICD-10-CM code?
- Yes. R40.2320 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does R40.2320 sit in the tabular list?
- Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99), in the block Symptoms and signs involving cognition, perception, emotional state and behavior (R40-R46).