R40

Classification

Category:Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified

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Coding Guidance

R40 should not be used for reimbursement purposes as there are more specific codes below it that contain a greater level of detail.

Includes

From R00-R99

Excludes 1

P91.5

neonatal coma

E08-E13

somnolence, stupor and coma in diabetes

K72

somnolence, stupor and coma in hepatic failure

E15

somnolence, stupor and coma in hypoglycemia (nondiabetic)

Excludes 2

O28

abnormal findings on antenatal screening of mother

P04-P96

certain conditions originating in the perinatal period

N63 N64.5

signs and symptoms of breast

More Specific Codes

Persistent vegetative state

R40.4

Transient alteration of awareness

External Resources

2025 ICD-10 guidelines from CMS.gov