ICD-10

ICD-10 code G47.21

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- ICD-10-CM
TABULAR LIST of DISEASES and INJURIES
- G00-G99
Diseases of the nervous system
- G40-G47
Episodic and paroxysmal disorders
- G47
Sleep disorders
- G47.2
Circadian rhythm sleep disorders

G47.21

Circadian rhythm sleep disorder, delayed sleep phase type

ICD-10 code G47.21 for Circadian rhythm sleep disorder, delayed sleep phase type

Delayed sleep phase syndrome
ICD-10
ATC
ICD-10 International Statistical Classification of Diseases and Related Health Problems 10th Revision
ICD-10

ICD-10 is the 10th revision of the International Statistical Classification of Diseases and Related Health Problems (ICD), a medical classification list by the World Health Organization (WHO).

It contains codes for diseases, signs and symptoms, abnormal findings, complaints, social circumstances, and external causes of injury or diseases.

ATC

The Anatomical Therapeutic Chemical (ATC) Classification System is used for the classification of active ingredients of drugs according to the organ or system on which they act and their therapeutic, pharmacological and chemical properties.

It is controlled by the World Health Organization Collaborating Centre for Drug Statistics Methodology (WHOCC).

DDD

The defined daily dose (DDD) is a statistical measure of drug consumption, defined by the World Health Organization (WHO).

It is used to standardize the comparison of drug usage between different drugs or between different health care environments.

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