Summary & Overview
CPT 1039F: Intermittent Asthma Diagnosis
CPT code 1039F denotes the diagnosis of intermittent asthma. Nationally, diagnostic coding for asthma guides clinical tracking, quality measurement and payer coverage decisions for outpatient respiratory care. Accurate use of 1039F identifies patients with episodic asthma symptoms distinct from persistent forms, informing disease monitoring and population health initiatives.
Key payers covered in this overview include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare and Medicare. Readers will find a concise description of the code's clinical meaning and service context, plus guidance on what to expect in broader coverage and administrative workflows. The publication summarizes benchmarking concepts, clinical context for outpatient assessment, and where 1039F fits within diagnostic documentation and quality reporting frameworks.
This material is intended for clinicians, billing professionals, and policy analysts seeking a national-level understanding of how CPT code 1039F is used for intermittent asthma diagnosis, what typical sites of service are, and which major payers are commonly involved. Data not available in the input is noted where applicable.
Billing Code Overview
CPT code 1039F represents the diagnosis of intermittent asthma in a patient. This code is used to indicate the clinical presence of intermittent asthma, a respiratory condition characterized by episodic symptoms that are not persistent.
Service type: Diagnosis / ambulatory respiratory assessment
Typical site of service: Outpatient clinic, primary care office, or pulmonary specialty clinic
Data not available in the input.
Clinical & Coding Specifications
Clinical Context
A typical patient is a school-aged child or adult presenting to primary care or a pulmonary clinic with episodic wheeze, chest tightness, cough and shortness of breath that occur with viral infections, exercise, allergen exposure, or environmental triggers. Clinical workflow includes history focused on symptom frequency and severity, review of triggers, physical exam with auscultation, peak expiratory flow measurement or spirometry when feasible, assessment of control and need for controller versus rescue therapy, and documentation of intermittent asthma diagnosis. Encounter documentation supports use of 1039F to denote a diagnosis of intermittent asthma for quality reporting and administrative coding. Follow-up planning, patient education on inhaler technique, and action plan generation commonly occur in the same visit or in specialty referral visits.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
25 | Significant, separately identifiable evaluation and management service by the same physician on the same day of a procedure | Use when an E/M visit is performed in addition to another service on the same day and documentation supports a distinct evaluation unrelated to the procedure for asthma evaluation. |
| 59 | Distinct procedural service | Use when billing distinct procedural services that are not typically reported together but are performed during the same visit, if applicable.
| 52 | Reduced services | Use when a service is partially reduced or not completed, documented and justified for the specific encounter.
| 76 | Repeat procedure or service by same physician | Use if a diagnostic test (e.g., spirometry) is repeated by the same provider on the same day.
| GG | Temporary discontinuation of therapy | Use in relevant situations per payer policy when therapy is temporarily held; applicable for certain payers' quality reporting rules.
| LT | Left side | Use when laterality is required by the service description (rare for this code) but included here for completeness.
| RT | Right side | Use when laterality is required by the service description (rare for this code) but included here for completeness.
| TC | Technical component | Use when only the technical component of a service is provided and billed separately.
| 26 | Professional component | Use when only the professional component of a service is provided and billed separately.
| KX | Requirements specified in the medical policy have been met | Use when payer-specific medical necessity criteria are met and the payer requires this modifier for coverage.
| Taxonomy Code | Specialty | Notes |
|---|---|---|
207Q00000X | Allergy & Immunology | Specialists who evaluate and manage intermittent asthma, perform detailed allergy testing and immunotherapy planning. |
| 207R00000X | Pulmonary Disease | Pulmonologists who assess severity, order and interpret spirometry, and manage complex asthma cases.
| 261QF0400X | Pediatrics | Pediatricians who commonly diagnose and manage intermittent asthma in children.
| 207L00000X | Internal Medicine | Internists managing adult patients with intermittent asthma in primary care or specialty settings.
| 163W00000X | Respiratory Therapy | Respiratory therapists who perform pulmonary function testing and provide inhaler/nebulizer education.
Related Diagnoses
| ICD-10 Code | Description | Clinical Relevance |
|---|---|---|
J45.20 | Mild intermittent asthma, uncomplicated | Common code for intermittent asthma where symptoms occur less than twice weekly and nighttime symptoms less than twice monthly. |
| J45.21 | Mild intermittent asthma, with (acute) exacerbation | Used when intermittent asthma is documented with an acute exacerbation during the encounter.
| J45.22 | Mild intermittent asthma, with status asthmaticus | Used in rare severe presentations where intermittent asthma progresses to status asthmaticus.
| J45.30 | Moderate persistent asthma, unspecified | Included for differential coding when severity assessment may change; relevant if documentation indicates more frequent symptoms.
| J45.901 | Unspecified asthma with (acute) exacerbation | Used when the specific asthma type is not classified but an exacerbation is present.
| R06.2 | Wheezing | Symptom code commonly documented during assessment of intermittent asthma.
| Z71.89 | Other specified counseling | Used when asthma education or inhaler technique counseling is provided during the visit.
Related CPT Codes
| CPT Code | Description | Relationship to This Procedure |
|---|---|---|
94010 | Spirometry, including graphic record, total and timed vital capacity, with or without maximal voluntary ventilation | Performed to document airflow obstruction and reversibility when diagnosing or assessing intermittent asthma; commonly ordered at the same visit. |
| 94375 | Respiratory flow volume loop | Used for more detailed pulmonary function assessment when spirometry is inconclusive or more information on flow-volume curves is needed during asthma evaluation.
| 94640 | Pressurized or non-pressurized inhalation treatment for acute airway obstruction | Used when a patient with intermittent asthma requires inhaled bronchodilator treatment during the visit.
| 94060 | Bronchodilator responsiveness, spirometry as in 94010 pre- and post-bronchodilator | Used to demonstrate reversibility of airflow obstruction, supporting the diagnosis of asthma.
| 99173 | Screening test of visual acuity, single or limited | Often performed in pediatric visits as part of a broader preventive or school-required assessment when assessing overall health, though not specific to asthma.