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Coding Guides
FeNO Monitoring CPT/HCPCS Codes
Here is a sample of the coding reference guide for healthcare providers billing for FeNO monitoring and related services.
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CPT/HCPCS Code1
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Descriptor
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95012
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Nitric oxide expired gas determination
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A4617
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Mouthpiece
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99201-99205*
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New patient office visit for the evaluation and management
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99211-99215*
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Established patient office visit for the evaluation and management
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*Use of these codes requires the appropriate use of modifiers. If an E&M code is reported with CPT 95012, the 25 modifier must be appended.
FeNO and Asthma Coding Guides
For full FeNO or asthma ICD-10 coding reference guides, please download the PDFs below.
FeNO CPT Coding Reference Guide
ICD-10-CM Asthma Diagnosis Coding
References
References: 1. Data on file. Circassia Pharmaceuticals Inc. April 2019 2. 2018 Payer Sheet. Data on File. Circassia Pharmaceuticals Inc. April 2018 3. CMS Medicare Fee Schedule (state reimbursement rate fluctuates based on regional Medicare contracts) https://www.cms.gov/apps/physician-fee-schedule/license-agreement.aspx. Accessed October 3, 2019. 4. State Medicaid Fee Schedule (reimbursement rate fluctuates based on MCO contracts) https://www.cms.gov/apps/physician-fee-schedule/license-agreement.aspx. Accessed October 3, 2019.