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ICD-10 Coding for Nitric Oxide(I27.0, I27.2, I27.9)

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Explore the ICD-10 coding guidelines for nitric oxide therapy and FeNO testing, including primary codes, documentation requirements, and common pitfalls.

Also known as:
NOInhaled Nitric OxideFeNO Testing
Related ICD-10 Code Ranges

Complete code families applicable to Nitric Oxide

I00-I99Primary Range

Diseases of the circulatory system

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Code Comparison: When to Use Each Code

Compare key differences between these codes to ensure accurate selection

CodeDescription
I27.0Primary pulmonary hypertension
P29.3Persistent fetal circulation
Primary ICD-10-CM Codes
Primary pulmonary hypertension
I27.0Billable
Differential Codes

Alternative codes to consider when ruling out similar conditions

Pulmonary hypertension due to left heart diseaseI27.2
Congenital diaphragmatic herniaQ79.0

Documentation & Coding Risks

Avoid these common issues when documenting Nitric Oxide.

Using FeNO testing codes for COPD diagnosis.

Impact

Clinical: Misrepresentation of patient condition., Regulatory: Non-compliance with coding standards., Financial: Denial of claims and potential audits.

Mitigation

Use FeNO testing codes only for asthma-related diagnoses.

Missing modifier -25 with E&M codes when billing with CPT 95012.

Impact

Reimbursement: Denial of claims leading to loss of revenue., Compliance: Non-compliance with coding guidelines., Data Quality: Inaccurate representation of services provided.

Mitigation

Always append modifier -25 to E&M codes when billing with CPT 95012.

Inhaled Nitric Oxide Therapy

Impact

Lack of documentation for oxygenation index and PaO₂ levels.

Mitigation

Ensure all clinical criteria are documented before billing.

Frequently Asked Questions

Related condition guides

Documentation requirements, coding pitfalls and FAQs for conditions coded with I27.0.