What is the ICD-10 code for Pickwickian syndrome?

The ICD-10 code for Pickwickian syndrome, also known as obesity hypoventilation syndrome, is E66.2. This code is used when obesity is linked to alveolar hypoventilation.

Can E66.2 and G47.33 be coded together?

No, E66.2 and G47.33 should not be coded together if hypoventilation is present. Use E66.2 alone for obesity hypoventilation syndrome.

What documentation is required for coding E66.2?

Documentation must include BMI, evidence of daytime hypercapnia, and link obesity to hypoventilation. ABG results showing pCO2 >45 mmHg are essential.

ICD-10 Coding for Pickwickian Syndrome(E66.2, E66.9, G47.33)

Save

Learn about Pickwickian syndrome (obesity hypoventilation syndrome) ICD-10 coding with E66.2. Understand documentation requirements and coding pitfalls.

Also known as:

Obesity Hypoventilation SyndromeOHS

Related ICD-10 Code Ranges

Complete code families applicable to Pickwickian Syndrome

E00-E89Primary Range

Endocrine, nutritional and metabolic diseases

→

Code Comparison: When to Use Each Code

Compare key differences between these codes to ensure accurate selection

Code	Description	When to Use	Key Documentation
E66.2	Morbid (severe) obesity with alveolar hypoventilation	Use when obesity is linked to alveolar hypoventilation and sleep-disordered breathing.	BMI ≥30 Daytime hypercapnia (pCO2 >45 mmHg) Sleep-disordered breathing
G47.33	Obstructive sleep apnea	Use when OSA is present without obesity-related hypoventilation.	Polysomnography confirming OSA Absence of daytime hypercapnia

Primary ICD-10-CM Codes

Morbid (severe) obesity with alveolar hypoventilation

E66.2Billable

Differential Codes

Alternative codes to consider when ruling out similar conditions

Obstructive sleep apneaG47.33

Use when OSA is present without daytime hypercapnia.

Morbid obesity with alveolar hypoventilationE66.2

Use when obesity and hypoventilation are linked.

Documentation & Coding Risks

Avoid these common issues when documenting Pickwickian Syndrome.

Documenting 'OSA with obesity' without specifying hypoventilation.

Impact

Clinical: May lead to incorrect treatment focus., Regulatory: Non-compliance with coding guidelines., Financial: Potential loss of reimbursement.

Mitigation

Educate providers on documentation requirements., Use templates that prompt for necessary details.

Coding both E66.2 and G47.33 together.

Impact

Reimbursement: Incorrect coding may lead to reduced reimbursement., Compliance: Violates Excludes1 note, risking compliance issues., Data Quality: Compromises data accuracy and quality.

Mitigation

Use only E66.2 if hypoventilation is present.

Missing BMI code.

Impact

Reimbursement: May affect reimbursement accuracy., Compliance: Incomplete coding documentation., Data Quality: Inaccurate representation of patient's condition.

Mitigation

Always include the appropriate BMI code (Z68.3- or Z68.4-).

Incorrect coding of OSA with OHS

Impact

Coding both E66.2 and G47.33 together when hypoventilation is present.

Mitigation

Educate coders on Excludes1 note and proper code selection.

Frequently Asked Questions

Documentation requirements, coding pitfalls and FAQs for conditions coded with E66.2.

Primary Code

E66.2

Morbid (severe) obesity with alveolar hypoventilation

Quick Navigation

ICD-10 codes9

Coding risks4

FAQs3

ICD-10 Coding for Pickwickian Syndrome(E66.2, E66.9, G47.33)

Documentation & Coding Risks

Frequently Asked Questions

What is the ICD-10 code for Pickwickian syndrome?

Can E66.2 and G47.33 be coded together?

What documentation is required for coding E66.2?

Related condition guides