Summary & Overview
CPT 59025: Fetal Non-Stress Test for Prenatal Assessment
CPT code 59025 is designated for the fetal non-stress test (NST), a critical procedure in prenatal care that evaluates fetal heart rate and movement to ensure fetal well-being. This test is widely used across the United States in office settings, particularly for pregnancies with potential complications or high-risk factors. The NST is a non-invasive assessment that helps clinicians monitor fetal health and make informed decisions regarding maternity care and delivery.
Major national payers, including Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare, provide coverage for this procedure, reflecting its importance in standard obstetric practice. The publication offers a comprehensive overview of clinical indications, typical billing practices, and relevant policy updates for 59025. Readers will gain insights into payer coverage, common modifiers, associated provider taxonomies, and related ICD-10 diagnoses that justify the use of the NST. Additionally, the article highlights related CPT codes and benchmarks for maternity care services.
This summary serves as a resource for understanding the clinical context, billing requirements, and payer landscape for fetal non-stress testing, supporting informed decision-making for healthcare organizations and professionals involved in maternity care.
CPT Code Overview
CPT code 59025 represents a fetal non-stress test (NST), a procedure used to assess fetal well-being during pregnancy. This test is typically performed as part of surgical procedures for maternity care and delivery. The most common site of service for this procedure is the office setting (POS 11), where expectant mothers are monitored for fetal heart rate and movement without inducing contractions. The fetal non-stress test is a standard tool in prenatal care, providing valuable information about fetal health and guiding clinical decision-making during pregnancy.
Clinical & Coding Specifications
Clinical Context
A pregnant patient presents to the office (Place of Service 11) for evaluation due to concerns about fetal well-being. The patient may have a history of high-risk pregnancy, premature rupture of membranes, or inconclusive fetal viability. The provider, typically an obstetrics or gynecology physician, performs a fetal non-stress test (59025) to assess fetal heart rate patterns and response to movement. This procedure is commonly used in the management of high-risk pregnancies or when there are concerns about fetal health during prenatal care.
Coding Specifications
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Modifiers:
26: Professional component – used when only the physician's interpretation and report are billed.TC: Technical component – used when only the technical aspect (equipment, staff) is billed.59: Distinct procedural service – used to indicate that the procedure is separate and distinct from other services performed on the same day.
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Provider Taxonomies:
| Taxonomy Code | Specialty Name |
|---|---|
207V00000X | Obstetrics & Gynecology Physician |
207VX0000X | Obstetrics Physician |
207VG0400X | Gynecology Physician |
These taxonomies represent providers specializing in obstetrics, gynecology, or both, who are qualified to perform and interpret fetal non-stress tests.
Related Diagnoses
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O36.80X0: Pregnancy with inconclusive fetal viability, unspecified trimester- Relevant when fetal viability is uncertain and a non-stress test is needed to assess fetal status.
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O09.90: Supervision of high-risk pregnancy, unspecified, unspecified trimester- Used for patients under surveillance due to high-risk factors, justifying the need for fetal monitoring.
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O36.4XX0: Maternal care for intrauterine death, not applicable or unspecified- Indicates situations where fetal demise is suspected or confirmed, and monitoring may be part of the clinical workflow.
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O42.90: Premature rupture of membranes, unspecified weeks of gestation- Applies when the patient has ruptured membranes, increasing risk and necessitating fetal assessment.
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O09.891: Supervision of other high-risk pregnancies, first trimester- Used for early pregnancy high-risk cases where fetal monitoring may be indicated.
Related CPT Codes
76815: Ultrasound, pregnant uterus, real time with image documentation, limited
76815 is often used in conjunction with 59025 during the assessment of fetal well-being. While 59025 evaluates fetal heart rate patterns, 76815 provides imaging to assess fetal position, amniotic fluid, and other parameters. These codes may be used together in high-risk pregnancy management or when additional information is needed beyond the non-stress test. 76815 can also serve as an alternative when imaging is required for clinical decision-making.
National Reimbursement Benchmarks
National mean rates for CPT code 59025 show a clear distinction between Medicare and commercial payers. Medicare's mean rate is $34.44, while the average commercial mean rate (BUCA) is $48.36, indicating a substantial gap in reimbursement levels.
Rate dispersion, measured by the difference between the 75th and 25th percentiles, varies across payers. Blue Cross Blue Shield has the widest spread at $20.04, while Aetna exhibits the tightest range at $21.70. Cigna and UnitedHealth Group both show a high degree of variability, with ranges of $27.33. This suggests that some payers have more consistent rates, while others display greater variability in reimbursement.
The table and chart below present a detailed breakdown of national benchmarks for each payer, including mean rates and percentile values.
Trek Health ingests and normalizes Transparency in Coverage data and payer policy updates to give provider organizations a clear view of how commercial reimbursement behaves across markets, payers, and services. Our platform transforms raw payer disclosures into structured intelligence that supports contract evaluation, payer negotiations, and service line strategy. By combining market benchmarks with ongoing policy visibility, Trek helps teams identify variability, risk, and opportunity in commercial reimbursement. The result is faster insight, stronger negotiating positions, and more informed financial decisions.