ICD-10-CM Code R40.21
Coma scale, eyes open
Non-Billable Code
Non-Billable means the code is not sufficient justification for admission to an acute care hospital when used a principal diagnosis. Use a child code to capture more detail.ICD Code R40.21 is a non-billable code. To code a diagnosis of this type, you must use one of the four child codes of R40.21 that describes the diagnosis 'coma scale, eyes open' in more detail.
- R40.21 Coma scale, eyes open NON-BILLABLE
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The ICD code R402 is used to code Coma
In medicine, coma (from the Greek κῶμα koma, meaning "deep sleep") is a state of unconsciousness in which a person: cannot be awakened; fails to respond normally to painful stimuli, light, or sound; lacks a normal wake-sleep cycle; and does not initiate voluntary actions. A person in a state of coma is described as being comatose. Typically, a distinction is made in the medical community between a coma and a medically induced coma, the former is generally understood to be a result of circumstances beyond the control of the medical community, while the latter is generally understood to be a means by which medical professionals may allow a patient's injuries to heal in a controlled environment.
| Specialty: | Neurology |
| MeSH Code: | D003128 |
| ICD 9 Code: | 780.01 |
Coding Notes for R40.21 Info for medical coders on how to properly use this ICD-10 code
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7th Character Extension Notes:
What is 7th Character Extension?
For codes less than 6 characters that require a 7th character a placeholder 'X' should be assigned for all characters less than 6. The 7th character must always be the 7th position of a code. E.g. The ICD-10-CM code T67.4 (Heat exhaustion due to salt depletion) requires an Episode of Care identifier. T67.4XXA Initial Encounter or T67.4XXD Subsequent Encounter. More Info - The following appropriate 7th character is to be added to subcategory R40.21-: See code R40.21-
ICD-10-CM Alphabetical Index References for 'R40.21 - Coma scale, eyes open'
The ICD-10-CM Alphabetical Index links the below-listed medical terms to the ICD code R40.21. Click on any term below to browse the alphabetical index.
Parent Code: R40.2 - Coma