R40.2 - Coma
- Applicable to Coma
- The 2025 edition of ICD10-CM R40.2 became effective on October 1, 2024.
- This is the American ICD10-CM version of R40.2 - other international versions of ICD10 R40.2 may differ.
- R40.2 is a Non-Billable / Non-Specific ICD10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- R40.2 Code should not be used for billing or reimbursement purposes as there are multiple ICD-10 CM codes below it that contain a greater level of detail.
- R40.2 - Coma
- R40.2 - Coma
- R40.20 - Unspecified coma
- R40.21 - Coma scale, eyes open
- R40.211 - Coma scale, eyes open, never
- R40.212 - Coma scale, eyes open, to pain
- R40.213 - Coma scale, eyes open, to sound
- R40.214 - Coma scale, eyes open, spontaneous
- R40.22 - Coma scale, best verbal response
- R40.221 - Coma scale, best verbal response, none
- R40.222 - Coma scale, best verbal response, incomprehensible words
- R40.223 - Coma scale, best verbal response, inappropriate words
- R40.224 - Coma scale, best verbal response, confused conversation
- R40.225 - Coma scale, best verbal response, oriented
- R40.23 - Coma scale, best motor response
- R40.231 - Coma scale, best motor response, none
- R40.232 - Coma scale, best motor response, extension
- R40.233 - Coma scale, best motor response, abnormal flexion
- R40.234 - Coma scale, best motor response, flexion withdrawal
- R40.235 - Coma scale, best motor response, localizes pain
- R40.236 - Coma scale, best motor response, obeys commands
- R40.24 - Glasgow coma scale, total score
- R40.241 - Glasgow coma scale score 13-15
- R40.242 - Glasgow coma scale score 9-12
- R40.243 - Glasgow coma scale score 3-8
- R40.244 - Other coma, without documented Glasgow coma scale score, or with partial score reported
- R40.2A - Nontraumatic coma due to underlying condition
Code Notes
- One code from each subcategory, R40.21-R40.23, is required to complete the coma scale
codefirst
- any associated:
- fracture of skull (S02.-)
- intracranial injury (S06.-)
The following codes above R40.2 contain annotation back-references that may be applicable to R40.2:
Chapter: R00-R99 Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
Section: R40-R46 Symptoms and signs involving cognition, perception, emotional state and behavior
Category: R40 Somnolence, stupor and coma
Non-Billable/Non-Specific Code
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