G47.32 — High altitude periodic breathing
G47.32 is a billable, specific ICD-10-CM code for high altitude periodic breathing. It is valid for submission on a claim.
Risk adjustment
G47.32 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Medicare coverage
G47.32 is named in 7 Medicare coverage policies — 7 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A56730Billing and Coding: Respiratory Therapy and Oximetry Services
- A56730Billing and Coding: Respiratory Therapy and Oximetry Services
- A56903Billing and Coding: Polysomnography and Other Sleep Studies
- A56923Billing and Coding: Outpatient Sleep Studies
How G47.32 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to G47.32.
- Breathing›periodic›high altitude
Related codes at this level
Codes that share G47.3. If G47.32 is not quite right, the correct code is usually one of these.
- G47.30Sleep apnea, unspecified
- G47.31Primary central sleep apnea
- G47.33Obstructive sleep apnea (adult) (pediatric)
- G47.34Idiopathic sleep related nonobstructive alveolar hypoventilation
- G47.35Congenital central alveolar hypoventilation syndrome
- G47.36Sleep related hypoventilation in conditions classified elsewhere
- G47.37Central sleep apnea in conditions classified elsewhere
- G47.39Other sleep apnea
Questions about G47.32
- Is G47.32 a billable ICD-10-CM code?
- Yes. G47.32 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does G47.32 sit in the tabular list?
- Diseases of the nervous system (G00-G99), in the block Episodic and paroxysmal disorders (G40-G47).