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ICD-10-CM 2027

ICD-10 code for OSA (obstructive sleep apnea)

G47.33

Obstructive sleep apnea (adult) (pediatric)

✓ Billable / specific

Confirmed by the official ICD-10-CM index entry “apnea, apneic (of) (spells) › sleep › obstructive (adult) (pediatric)”. Page updated September 29, 2026.

About coding OSA

The ICD-10-CM code for OSA (obstructive sleep apnea) is G47.33 (Obstructive sleep apnea (adult) (pediatric)). The official index lists 8 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on G47.33.

It is also searched as sleep apnea.

Within G47.3 (sleep apnea), G47.33 is specifically for obstructive sleep apnea (adult) (pediatric). Related codes cover unspecified (G47.30), primary central sleep apnea (G47.31), high altitude periodic breathing (G47.32), idiopathic sleep related nonobstructive alveolar hypoventilation (G47.34), congenital central alveolar hypoventilation syndrome (G47.35), sleep related hypoventilation in conditions classified elsewhere (G47.36), central sleep apnea in conditions classified elsewhere (G47.37) and other sleep apnea (G47.39).

Don't report G47.33 together with the conditions in its Excludes1 note: obstructive sleep apnea of newborn (P28.3-).

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

Related OSA codes

  • G47.30 Sleep apnea, unspecified
  • G47.31 Primary central sleep apnea
  • G47.32 High altitude periodic breathing
  • G47.34 Idiopathic sleep related nonobstructive alveolar hypoventilation
  • G47.35 Congenital central alveolar hypoventilation syndrome
  • G47.36 Sleep related hypoventilation in conditions classified elsewhere
  • G47.37 Central sleep apnea in conditions classified elsewhere
  • G47.39 Other sleep apnea

Don't confuse with (Excludes1 for G47.33)

  • obstructive sleep apnea of newborn (P28.3-)

Common questions about OSA ICD-10 codes

What is the ICD-10 code for OSA?

G47.33 — Obstructive sleep apnea (adult) (pediatric). More specific codes apply when the documentation supports them: G47.30, G47.31, G47.32, G47.34 and others below.

What is the ICD-10 code for sleep apnea, unspecified?

G47.30 — Sleep apnea, unspecified.

What is the ICD-10 code for primary central sleep apnea?

G47.31 — Primary central sleep apnea.

What is the ICD-10 code for high altitude periodic breathing?

G47.32 — High altitude periodic breathing.

What is the ICD-10 code for idiopathic sleep related nonobstructive alveolar hypoventilation?

G47.34 — Idiopathic sleep related nonobstructive alveolar hypoventilation.

What is the ICD-10 code for congenital central alveolar hypoventilation syndrome?

G47.35 — Congenital central alveolar hypoventilation syndrome.

What is the ICD-10 code for sleep related hypoventilation in conditions classified elsewhere?

G47.36 — Sleep related hypoventilation in conditions classified elsewhere.

Is G47.33 billable?

Yes. G47.33 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can G47.33 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict G47.33 as a principal diagnosis.

Is G47.33 a CC or MCC?

No. G47.33 is neither a CC nor an MCC under MS-DRG v44.0.