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ICD-10-CM Diagnosis Code G47.21

Effective Date: 10/01/2015 To 09/30/2025

Circadian rhythm sleep disorder, delayed sleep phase type

CMS-HCC-V24 CMS-HCC-V28 RxHCC Age Gender Maternity Acute or Chronic MCC
-- -- -- -- -- -- Acute No
Applicable To for G47.21:
  • Delayed sleep phase syndrome

Back-references to G47.21
  • Delay, delayed
    • sleep phase syndrome G47.21
    • Disorder(of) see also Disease
      • sleep G47.9
        • circadian rhythm G47.20
          • delayed sleep phase type G47.21
      • Syndrome see also Disease
        • delayed sleep phase G47.21
        • Related Medications for G47.21
          • tasimelteon

          Chapter, Section and Diagnosis Prefix for G47.21
            G00-G99 :

            Diseases of the nervous system

            G40-G47 :

            Episodic and paroxysmal disorders

            G47 :

            Sleep disorders