ICD-10-CM Diagnosis Code (2025)
Official Description for R40.0
Somnolence
Coding Notes & Guidelines for R40.0
Excludes1: Not Coded Here
coma (R40.2-)
Inclusion Terms
Drowsiness
Parent Code (Less Specific):
About ICD-10-CM Code R40.0 (Somnolence)
ICD-10-CM code R40.0 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM R40.0 became effective on October 1, 2024.
This page provides detailed information about R40.0 - Somnolence. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Somnolence.