Alphabetic Index FY2027

G47.33

Obstructive sleep apnea (adult) (pediatric)

FY2027Chapter 6: Diseases of the nervous system/G40–G47 Episodic and paroxysmal disorders

BillableComplete code, valid to report
Care settingsHome Health Primary · MMTA - OtherIPF Comorbidity · Chronic Obstructive Pulmonary Disease and Sleep Apnea

G47.33 (also written G4733) is a billable ICD-10-CM diagnosis code for obstructive sleep apnea (adult) (pediatric). It is part of the FY2027 code set, effective October 1, 2026. It is one of the 43 codes in category G47 (Sleep disorders). The Alphabetic Index lists it under 3 entries. Its coding notes include a Code also instruction, 5 Excludes1 entries and 12 Excludes2 entries.

Code also

Two codes may be needed to describe the condition. This note gives no sequencing order.

Inherited from G47.3 Sleep apnea
  • any associated underlying condition

Excludes1

Not coded here. The listed conditions generally should not be reported together.

This code
  • obstructive sleep apnea of newborn (P28.3-)
Inherited from G47.3 Sleep apnea

Excludes2

Not included here. Both codes may be reported if the patient has both conditions.

Inherited from G47 Sleep disorders
Also from chapter/block level (8 notes)
Inherited from Chapter 6 Diseases of the nervous system
  • 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)

Care settings

How CMS programs treat this code. These are CMS claim edits and list entries, not coverage or eligibility rules.

Home Health Primary

Accepted as the primary (principal) diagnosis on a home health claim. The Home Health Grouper assigns it to the MMTA - Other clinical group.

Source: CMS Home Health Grouper Software v07.2.26, effective October 1, 2026

IPF Comorbidity

On the CMS IPF comorbidity list.

Comorbidity categoryFactor
Chronic Obstructive Pulmonary Disease and Sleep Apnea1.09
It counts as a comorbidity when reported as a secondary diagnosis and actively treated during the stay. An IPF receives only one adjustment within a category and can receive adjustments in more than one category.

Source: CMS IPF PPS FY 2027 final rule (CMS-1847-F), Addendum B-3 (comorbidity codes with adjustment factor); effective for discharges on or after October 1, 2026

Inclusion terms

Conditions classified to this code.

This code
  • Obstructive sleep apnea hypopnea

Alphabetic Index terms

Terms the official Alphabetic Index lists for this code. 3 entries