View source for Obesity-hypoventilation syndrome (Pickwick syndrome)

{{ICD10 transition status
| OldDxArticle =Sleep Apnea Syndrome
| CurrentStatus = reconciled
| InitialEditorAssigned = Gail Hall
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{{ICD10 dx
| MinimumCombinedCodes =
| ICD10 Code=E66.2
| BugRequired= 
}}
{{ICD10 category|Respiratory}}{{ICD10 category|Sleep disorder}}

== Additional Info ==
Obesity-hypoventilation syndrome (Pickwick syndrome) is a subset of [[Sleep apnea, obstructive]], in which in addition to having apnea with episodes of [[Hypercapnia (hypercarbia)]] during sleep. These people also have hypercapnia while ''awake''.  As a result, these chronically hypercapnic patients generally have compensatory metabolic [[Alkalosis]] (i.e. high serum bicarbonate to counteract the effect of the high pCO2 on blood pH).
*The diagnosis is generally made based on:  
** demonstrated sleep apnea, 
** [[Obesity, NOS (BMI 30.0 to 39.9)]] or [[Obesity, morbid (severe, BMI gte 40)]], 
** and daytime hypercapnia not explained by other disorders (e.g. severe COPD).  

You can include Obesity-hypoventilation syndrome (Pickwick syndrome) as one of the last/lowest priority [[Admit Diagnosis]] to capture this problem even though it is not reason for admission.

While we did not allow sleep apnea as a [[Comorbid Diagnosis]] in the old codes, this code will be allowed. 

== Alternate ICD10s to consider coding instead or in addition ==
{{ListICD10Category | categoryName = Sleep disorder}}
*[[Obesity, NOS (BMI 30.0 to 39.9)]] 
*[[Obesity, morbid (severe, BMI gte 40)]]
*[[Alkalosis]]

== Candidate [[Combined ICD10 codes]] ==

== Related CCI Codes ==

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== Related Articles ==
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