ICD-10-CM Codes › G00-G99 Diseases of the nervous system › G40-G47 Episodic and paroxysmal disorders › G47- Sleep disorders › 2020 ICD-10-CM Diagnosis Code G47.21

2020 ICD-10-CM Diagnosis Code G47.21

Circadian rhythm sleep disorder, delayed sleep phase type

2016 2017 2018 2019 2020 Billable/Specific Code

G47.21 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2020 edition of ICD-10-CM G47.21 became effective on October 1, 2019.

became effective on October 1, 2019. This is the American ICD-10-CM version of G47.21 - other international versions of ICD-10 G47.21 may differ.

Applicable To Delayed sleep phase syndrome

G47.21 contain annotation back-references Annotation Back-References Applicable To annotations, or

Code Also annotations, or

Code First annotations, or

Excludes1 annotations, or

Excludes2 annotations, or

Includes annotations, or

Note annotations, or

Use Additional annotations In this context, annotation back-references refer to codes that contain: G47.21 : G00-G99 2020 ICD-10-CM Range G00-G99 Diseases of the nervous system Type 2 Excludes certain conditions originating in the perinatal period (P04-P96) certain infectious and parasitic diseases (A00-B99) complications of pregnancy, childbirth and the puerperium (O00-O9A) congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99) endocrine, nutritional and metabolic diseases (E00-E88) injury, poisoning and certain other consequences of external causes (S00-T88) neoplasms (C00-D49) symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

G47 ICD-10-CM Diagnosis Code G47 Sleep disorders 2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code Type 2 Excludes nightmares (F51.5) nonorganic sleep disorders (F51.-) sleep terrors (F51.4) sleepwalking (F51.3)

G47.2 ICD-10-CM Diagnosis Code G47.2 Circadian rhythm sleep disorders 2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code Applicable To Disorders of the sleep wake schedule Inversion of nyctohemeral rhythm Inversion of sleep rhythm

The following code(s) abovecontain annotation back-referencesthat may be applicable to

Approximate Synonyms

Circadian rhythm sleep disorder, delayed sleep phase

Sleep wake cycle disorder, delayed phase type

Sleep-wake schedule disorder, delayed phase

Sleep-wake schedule disorder, delayed phase type

Clinical Information

A subtype of circadian rhythm sleep disorder in which the individual exhibits a persistent pattern of late sleep onset and late awakening, which results from an endogenous sleep-wake cycle that is delayed relative to the societal norm.

ICD-10-CM G47.21 is grouped within Diagnostic Related Group(s) (MS-DRG v 37.0):

011 Tracheostomy for face, mouth & neck diagnoses or laryngectomy with mcc

012 Tracheostomy for face, mouth & neck diagnoses or laryngectomy with cc

013 Tracheostomy for face, mouth & neck diagnoses or laryngectomy without cc/mcc

091 Other disorders of nervous system with mcc

092 Other disorders of nervous system with cc

093 Other disorders of nervous system without cc/mcc

Convert G47.21 to ICD-9-CM

Code History

2016 (effective 10/1/2015) : New code (first year of non-draft ICD-10-CM)

: New code (first year of non-draft ICD-10-CM) 2017 (effective 10/1/2016) : No change

: No change 2018 (effective 10/1/2017) : No change

: No change 2019 (effective 10/1/2018) : No change

: No change 2020 (effective 10/1/2019) : No change

ICD-10-CM Codes Adjacent To G47.21

G47.09 Other insomnia G47.1 Hypersomnia G47.10 …… unspecified G47.11 Idiopathic hypersomnia with long sleep time G47.12 Idiopathic hypersomnia without long sleep time G47.13 Recurrent hypersomnia G47.14 …… due to medical condition G47.19 Other hypersomnia G47.2 Circadian rhythm sleep disorders G47.20 Circadian rhythm sleep disorder, unspecified type G47.21 Circadian rhythm sleep disorder, delayed sleep phase type G47.22 Circadian rhythm sleep disorder, advanced sleep phase type G47.23 Circadian rhythm sleep disorder, irregular sleep wake type G47.24 Circadian rhythm sleep disorder, free running type G47.25 Circadian rhythm sleep disorder, jet lag type G47.26 Circadian rhythm sleep disorder, shift work type G47.27 Circadian rhythm sleep disorder in conditions classified elsewhere G47.29 Other circadian rhythm sleep disorder G47.3 Sleep apnea G47.30 …… unspecified G47.31 Primary central sleep apnea

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.