AutoICD API

R40.0

Billable

Somnolence

Somnolence

Status

Billable / Specific

Block

R40-R46

Parent Code

R40

Coding Notes

Inclusion Terms

Alternative clinical terms for this condition

  • Drowsiness

Excludes 1

Codes that cannot be used together with this code (mutual exclusion)

  • neonatal coma (P91.5)
  • somnolence, stupor and coma in diabetes (E08-E13)
  • somnolence, stupor and coma in hepatic failure (K72.-)
  • somnolence, stupor and coma in hypoglycemia (nondiabetic) (E15)
  • coma (R40.2-)

Excludes 2

Conditions not included here, but the patient may have both

  • abnormal findings on antenatal screening of mother (O28.-)
  • certain conditions originating in the perinatal period (P04-P96)
  • signs and symptoms classified in the body system chapters
  • signs and symptoms of breast (N63, N64.5)
  • symptoms and signs constituting part of a pattern of mental disorder (F01-F99)

Also Known As / Clinical Terms

SNOMED CT

UMLS

Frequently Asked Questions

What is ICD-10 code R40.0?

ICD-10-CM code R40.0 represents "Somnolence". It is a billable/specific code that can be used on a claim.

Is R40.0 a billable code?

Yes, R40.0 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.

What chapter is R40.0 in?

R40.0 is in Chapter 18: Symptoms, Signs and Abnormal Clinical and Laboratory Findings (codes R00-R99).

What codes cannot be used with R40.0?

R40.0 has Excludes1 notes indicating codes that cannot be used together with it, including: neonatal coma (P91.5); somnolence, stupor and coma in diabetes (E08-E13); somnolence, stupor and coma in hepatic failure (K72.-); and 2 more.

What SNOMED CT codes does R40.0 map to?

R40.0 maps to 12 SNOMED CT concepts: 87227007, 141000119100, 194439006, 271782001, 95631006, and 7 more. SNOMED CT is a clinical terminology used in electronic health records.

What are the UMLS CUIs for R40.0?

R40.0 is linked to 1 UMLS Concept Unique Identifier: C2830004. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.

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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.