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ICD-10-CM Code R40.0
Somnolence

BILLABLE
Billable Code
Billable codes are sufficient justification for admission to an acute care hospital when used a principal diagnosis.
| ICD-10 from 2011 - 2016

R40.0 is a billable ICD code used to specify a diagnosis of somnolence. A 'billable code' is detailed enough to be used to specify a medical diagnosis.


The ICD code R400 is used to code Somnolence

Somnolence (alternatively "sleepiness" or "drowsiness") is a state of strong desire for sleep, or sleeping for unusually long periods (compare hypersomnia). It has distinct meanings and causes. It can refer to the usual state preceding falling asleep, the condition of being in a drowsy state due to circadian rhythm disorders, or a symptom of other health problems. It can be accompanied by lethargy, weakness, and lack of mental agility.

Specialty: Sleep Medicine
ICD 9 Code: 780.09
Source: Wikipedia

Coding Notes for R40.0 Info for medical coders on how to properly use this ICD-10 code

Inclusion Terms:
Inclusion Terms
Inclusion Terms are a list of concepts for which a specific code is used. The list of Inclusion Terms is useful for determining the correct code in some cases, but the list is not necessarily exhaustive.
Drowsiness
Code Type-1 Excludes:
Type-1 Excludes
Type-1 Excludes mean the conditions excluded are mutually exclusive and should never be coded together. Excludes 1 means "do not code here."
Coma - instead, use code R40.2-

MS-DRG Mapping

  • DRG Group #080-081 - Nontraumatic stupor and coma with MCC.
  • DRG Group #080-081 - Nontraumatic stupor and coma without MCC.

Related Concepts SNOMET-CT

  • Somnolence syndrome (disorder)

ICD-10-CM Alphabetical Index References for 'R40.0 - Somnolence'

The ICD-10-CM Alphabetical Index links the below-listed medical terms to the ICD code R40.0. Click on any term below to browse the alphabetical index.

Somnolence (R40.0)
Drowsiness (R40.0)

Equivalent ICD-9 Code GENERAL EQUIVALENCE MAPPINGS (GEM)

Other alteration of consciousness (approximate match)

This is the official approximate match mapping between ICD9 and ICD10, as provided by the General Equivalency mapping crosswalk. This means that while there is no exact mapping between this ICD10 code R40.0 and a single ICD9 code, 780.09 is an approximate match for comparison and conversion purposes.


Parent Code: R40 - Somnolence, stupor and coma

** This Document Provided By ICD.Codes **
Source: http://icd.codes/icd10cm/R400