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CPT 93786: Ambulatory Blood Pressure Monitoring, 24-Hour

CPT code 93786 represents the prescription of ambulatory blood pressure monitoring (ABPM), a 24‑hour automated measurement and recording of a patient’s blood pressure while they go about normal activities. This diagnostic service supports detection of white‑coat hypertension, masked hypertension, nocturnal hypertension, and assessment of antihypertensive therapy effectiveness—making it an important tool in national efforts to improve blood pressure control and cardiovascular risk management.

Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. The publication summarizes payer coverage patterns and utilization benchmarks where available, highlights clinical context for ABPM use, and outlines coding and billing considerations tied to service delivery in outpatient and ambulatory settings.

Readers will learn the clinical purpose of CPT code 93786, typical sites of service and workflow implications for ambulatory monitoring, common payer coverage themes, and areas where policy updates or reimbursement nuances affect access to ABPM. Data not available in the input is noted explicitly where applicable.

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Billing Code Overview

CPT code 93786 describes the prescription of ambulatory blood pressure monitoring (ABPM) in which a patient wears a device continuously that automatically measures blood pressure at intervals over a 24‑hour period and records the results. The service is a diagnostic monitoring prescription that initiates a period of out‑of‑office, continuous blood pressure data collection.

Service type: Ambulatory diagnostic monitoring (ambulatory blood pressure monitoring)
Typical site of service: Outpatient/ambulatory setting with device application in a clinic or office and monitoring performed during the patient's normal daily activities over 24 hours

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CPT 93786: Ambulatory Blood Pressure Monitoring, 24-Hour

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Get alerted when payer policies referencing 93786 are released or updated.

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Billing Code Overview

Service type: Ambulatory diagnostic monitoring (ambulatory blood pressure monitoring)
Typical site of service: Outpatient/ambulatory setting with device application in a clinic or office and monitoring performed during the patient's normal daily activities over 24 hours

Clinical & Coding Specifications

Clinical Context

A 52-year-old patient with poorly controlled hypertension and symptoms of intermittent morning headaches is referred by their primary care physician for ambulatory blood pressure monitoring. The provider prescribes ambulatory blood pressure monitoring to continuously record blood pressure readings at regular intervals over 24 hours to assess daytime and nighttime blood pressure patterns, evaluate suspected white-coat hypertension, or confirm masked hypertension. The clinical workflow: the ordering clinician documents the indication, obtains informed consent, and places the order for ambulatory blood pressure monitoring (93786). A trained clinic or durable medical equipment (DME) technician fits the patient with the ambulatory monitor, instructs the patient on activity and symptom diary completion, and schedules device return the following day. After device retrieval, the monitoring vendor or clinic downloads the recorded data and provides the unprocessed recording to the ordering provider for interpretation and clinical decision-making. Typical site of service is an outpatient clinic, cardiology clinic, primary care office, or DME vendor location. Typical modifiers that may apply include professional or technical distinctions, location or performance circumstances, and service adjustments for payer or clinical reasons.

Coding Specifications

Modifier	Description	When to Use
`26`	Professional component	Use when billing only the physician’s interpretation of monitoring data separate from technical device provision.
`TC`	Technical component	Use when billing only for the device provision, data collection, and technical processing without physician interpretation.
`59`	Distinct procedural service	Use when this monitoring service is separately reportable from other non-evaluation procedures performed the same day.
`52`	Reduced services	Use when the monitoring is begun but not completed as ordered (e.g., patient removed device early) and reduced service is documented.
`53`	Discontinued procedure	Use if the monitoring is started but discontinued for extenuating circumstances and documentation supports cancellation.
`QK`	Medical direction of two or more assistants	Rarely used; applicable if physician-directed medical device service involves qualified assistants as defined by payer rules.
`QX`	Service furnished under a PA’s NPI when required by payer rules	Use when a physician assistant performs the professional component per payer policy.
`QY`	Service furnished by a PA under physician supervision	Use when applicable based on payer/provider relationship and scope.
`78`	Return to OR for related procedure during postoperative period	Generally not applicable; included for scenarios where a related invasive procedure occurs in the global period.
`22`	Increased procedural services	Use when work required is substantially greater than typical and documented (rare for this monitoring service).
`59`	Distinct procedural service	Use to indicate the monitoring is distinct from other services billed the same day.
`51`	Multiple procedures	Use per payer rules when multiple distinct procedures are billed the same encounter.
`52`	Reduced services	Use when fewer measurements or shorter duration occur than ordered and documented.
`62`	Two surgeons	Use in rare clinical workflows requiring two physicians for associated procedures.

Taxonomy Code	Specialty	Notes
207RC0000X	Cardiology	Cardiologists commonly order and interpret ambulatory blood pressure monitoring for complex hypertension.
207Q00000X	Interventional Cardiology	May be involved when monitoring is part of pre- or post-procedural blood pressure assessment.
207L00000X	Hematology & Oncology	Uncommon; included only if part of broader cardiovascular risk management — otherwise not typical.
207K00000X	Internal Medicine	Primary care and internists commonly order and interpret ambulatory blood pressure monitoring.
103T00000X	Physician Assistant	PAs frequently manage device fitting and may perform interpretation under supervising physician per payer rules.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`I10`	Essential (primary) hypertension	Primary indication for ambulatory blood pressure monitoring to assess control and detect white-coat or masked hypertension.
`I15.0`	Renovascular hypertension	Secondary hypertension evaluation may include ambulatory monitoring to characterize blood pressure patterns.
`I95.9`	Hypotension, unspecified	Ambulatory monitoring can document symptomatic hypotension episodes and correlate them with activities.
`R00.2`	Palpitations	When patients report palpitations alongside BP symptoms, ambulatory monitoring may be ordered in conjunction with rhythm monitoring.
`R42`	Dizziness and giddiness	Used when dizziness may be related to blood pressure fluctuations; ambulatory monitoring helps correlate symptoms with BP changes.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`93786`	Ambulatory blood pressure monitoring, automated measurement, recording only, 24 hours	This is the primary code for prescribing and providing a 24-hour automated ambulatory blood pressure monitor that records results for later review.
`93000`	Electrocardiogram, routine ECG with at least 12 leads; with interpretation and report	Often performed alongside in patients with suspected hypertensive heart disease or palpitations as part of initial cardiac evaluation.
`93268`	External electrocardiographic recording up to 48 hours by continuous rhythm recording and storage; recording and review	May be performed concurrently when both ambulatory ECG and ambulatory BP monitoring are indicated; separate billing applies.
`94010`	Spirometry, including graphic record, total and timed vital capacity, expiratory flow rate measurement(s)	Performed in related pulmonary/cardiopulmonary evaluations; billed separately when clinically indicated.
`99213`	Office or other outpatient visit for the evaluation and management of an established patient	Typical visit code for the ordering or result-review visit where ambulatory blood pressure monitoring is prescribed or interpreted.

Related Codes

CPT-93701-CARDIAC-BIOIMPEDANCE-STUDY

CPT 93701: Cardiac Bioimpedance Study

CPT-93702-BIOIMPEDANCE-LYMPHEDEMA-ASSESSMENT

CPT 93702: Bioimpedance Lymphedema Assessment

CPT-93724-PACEMAKER-TACHYCARDIA-ANALYSIS-INTERPRETATION

CPT 93724: Pacemaker Analysis and Tachycardia Simulation

CPT-93740-INTRACARDIAC-TEMPERATURE-MAPPING

CPT 93740: Intracardiac Temperature Mapping Diagnostic Procedure

CPT-93745-WEARABLE-CARDIOVERTER-DEFIBRILLATOR-SETUP-PROGRAMMING

CPT 93745: Wearable Cardioverter Defibrillator Setup and Programming

CPT-93750-VENTRICULAR-ASSIST-DEVICE-PROGRAMMING-TESTING

CPT 93750: Ventricular Assist Device Programming and Testing

CPT-93770-INVASIVE-VENOUS-PRESSURE-MONITORING-CRITICAL-ILLNESS

CPT 93770: Invasive Venous Pressure Monitoring in Critical Illness

CPT-93784-AMBULATORY-24-HOUR-BLOOD-PRESSURE-MONITORING-INTERPRETATION

CPT 93784: Ambulatory 24-Hour Blood Pressure Monitoring with Interpretation

CPT-93788-AMBULATORY-BLOOD-PRESSURE-MONITORING-24-HOUR

CPT 93788: Ambulatory Blood Pressure Monitoring, 24-Hour

CPT-93790-AMBULATORY-BLOOD-PRESSURE-MONITORING-24-HOUR-INTERPRETATION

CPT 93790: Ambulatory Blood Pressure Monitoring, 24-Hour Interpretation

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

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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.

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Clinical & Coding Specifications

Clinical Context

Coding Specifications

Modifier	Description	When to Use
`26`	Professional component	Use when billing only the physician’s interpretation of monitoring data separate from technical device provision.
`TC`	Technical component	Use when billing only for the device provision, data collection, and technical processing without physician interpretation.
`59`	Distinct procedural service	Use when this monitoring service is separately reportable from other non-evaluation procedures performed the same day.
`52`	Reduced services	Use when the monitoring is begun but not completed as ordered (e.g., patient removed device early) and reduced service is documented.
`53`	Discontinued procedure	Use if the monitoring is started but discontinued for extenuating circumstances and documentation supports cancellation.
`QK`	Medical direction of two or more assistants	Rarely used; applicable if physician-directed medical device service involves qualified assistants as defined by payer rules.
`QX`	Service furnished under a PA’s NPI when required by payer rules	Use when a physician assistant performs the professional component per payer policy.
`QY`	Service furnished by a PA under physician supervision	Use when applicable based on payer/provider relationship and scope.
`78`	Return to OR for related procedure during postoperative period	Generally not applicable; included for scenarios where a related invasive procedure occurs in the global period.
`22`	Increased procedural services	Use when work required is substantially greater than typical and documented (rare for this monitoring service).
`59`	Distinct procedural service	Use to indicate the monitoring is distinct from other services billed the same day.
`51`	Multiple procedures	Use per payer rules when multiple distinct procedures are billed the same encounter.
`52`	Reduced services	Use when fewer measurements or shorter duration occur than ordered and documented.
`62`	Two surgeons	Use in rare clinical workflows requiring two physicians for associated procedures.

Taxonomy Code	Specialty	Notes
207RC0000X	Cardiology	Cardiologists commonly order and interpret ambulatory blood pressure monitoring for complex hypertension.
207Q00000X	Interventional Cardiology	May be involved when monitoring is part of pre- or post-procedural blood pressure assessment.
207L00000X	Hematology & Oncology	Uncommon; included only if part of broader cardiovascular risk management — otherwise not typical.
207K00000X	Internal Medicine	Primary care and internists commonly order and interpret ambulatory blood pressure monitoring.
103T00000X	Physician Assistant	PAs frequently manage device fitting and may perform interpretation under supervising physician per payer rules.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`I10`	Essential (primary) hypertension	Primary indication for ambulatory blood pressure monitoring to assess control and detect white-coat or masked hypertension.
`I15.0`	Renovascular hypertension	Secondary hypertension evaluation may include ambulatory monitoring to characterize blood pressure patterns.
`I95.9`	Hypotension, unspecified	Ambulatory monitoring can document symptomatic hypotension episodes and correlate them with activities.
`R00.2`	Palpitations	When patients report palpitations alongside BP symptoms, ambulatory monitoring may be ordered in conjunction with rhythm monitoring.
`R42`	Dizziness and giddiness	Used when dizziness may be related to blood pressure fluctuations; ambulatory monitoring helps correlate symptoms with BP changes.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`93786`	Ambulatory blood pressure monitoring, automated measurement, recording only, 24 hours	This is the primary code for prescribing and providing a 24-hour automated ambulatory blood pressure monitor that records results for later review.
`93000`	Electrocardiogram, routine ECG with at least 12 leads; with interpretation and report	Often performed alongside in patients with suspected hypertensive heart disease or palpitations as part of initial cardiac evaluation.
`93268`	External electrocardiographic recording up to 48 hours by continuous rhythm recording and storage; recording and review	May be performed concurrently when both ambulatory ECG and ambulatory BP monitoring are indicated; separate billing applies.
`94010`	Spirometry, including graphic record, total and timed vital capacity, expiratory flow rate measurement(s)	Performed in related pulmonary/cardiopulmonary evaluations; billed separately when clinically indicated.
`99213`	Office or other outpatient visit for the evaluation and management of an established patient	Typical visit code for the ordering or result-review visit where ambulatory blood pressure monitoring is prescribed or interpreted.

Related Codes

CPT-93701-CARDIAC-BIOIMPEDANCE-STUDY

CPT 93701: Cardiac Bioimpedance Study

CPT-93702-BIOIMPEDANCE-LYMPHEDEMA-ASSESSMENT

CPT 93702: Bioimpedance Lymphedema Assessment

CPT-93724-PACEMAKER-TACHYCARDIA-ANALYSIS-INTERPRETATION

CPT 93724: Pacemaker Analysis and Tachycardia Simulation

CPT-93740-INTRACARDIAC-TEMPERATURE-MAPPING

CPT 93740: Intracardiac Temperature Mapping Diagnostic Procedure

CPT-93745-WEARABLE-CARDIOVERTER-DEFIBRILLATOR-SETUP-PROGRAMMING

CPT 93745: Wearable Cardioverter Defibrillator Setup and Programming

CPT-93750-VENTRICULAR-ASSIST-DEVICE-PROGRAMMING-TESTING

CPT 93750: Ventricular Assist Device Programming and Testing

CPT-93770-INVASIVE-VENOUS-PRESSURE-MONITORING-CRITICAL-ILLNESS

CPT 93770: Invasive Venous Pressure Monitoring in Critical Illness

CPT-93784-AMBULATORY-24-HOUR-BLOOD-PRESSURE-MONITORING-INTERPRETATION

CPT 93784: Ambulatory 24-Hour Blood Pressure Monitoring with Interpretation

CPT-93788-AMBULATORY-BLOOD-PRESSURE-MONITORING-24-HOUR

CPT 93788: Ambulatory Blood Pressure Monitoring, 24-Hour

CPT-93790-AMBULATORY-BLOOD-PRESSURE-MONITORING-24-HOUR-INTERPRETATION

CPT 93790: Ambulatory Blood Pressure Monitoring, 24-Hour Interpretation

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

Published by

Trek Health powers OpenPayer with a leading commercial payer intelligence platform, seamlessly converting fragmented payer data into actionable insights for provider organizations.