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R40.2

Coma

Non-billableCategory

Code Hierarchy

R40R40.2

Chapter: 18. Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified

Section: R40-R46 - Symptoms and signs involving cognition, perception, emotional state and behavior

Coding Guidelines

Code First

  • any associated:
  • fracture of skull (S02.-)
  • intracranial injury (S06.-)

Notes

  • One code from each subcategory, R40.21-R40.23, is required to complete the coma scale

Specific Codes (6)

R40.20Billable

Unspecified coma

R40.21Category

Coma scale, eyes open

R40.22Category

Coma scale, best verbal response

R40.23Category

Coma scale, best motor response

R40.24Category

Glasgow coma scale, total score

R40.2ABillable

Nontraumatic coma due to underlying condition

Related Codes

R40.0Billable

Somnolence

R40.1Billable

Stupor

R40.3Billable

Persistent vegetative state

R40.4Billable

Transient alteration of awareness

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