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R40

Somnolence, stupor and coma

Non-billableCategory

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

Excludes1 (Mutually Exclusive)

These codes should never be used together with R40

  • P91.5 - neonatal coma (P91.5)
  • E08.-E13 - somnolence, stupor and coma in diabetes (E08-E13)
  • somnolence, stupor and coma in hepatic failure (K72.-)
  • E15 - somnolence, stupor and coma in hypoglycemia (nondiabetic) (E15)

Specific Codes (5)

R40.0Billable

Somnolence

R40.1Billable

Stupor

R40.2Category

Coma

R40.3Billable

Persistent vegetative state

R40.4Billable

Transient alteration of awareness

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