G8477 HCPCS Reimbursement & Benchmarks | OpenPayer

Summary & Overview

HCPCS G8477: Elevated Blood Pressure ≥140/≥90 mmHg

HCPCS Level II code G8477 denotes a most recent blood pressure reading with a systolic value >= 140 mmHg and/or a diastolic value >= 90 mmHg. The code captures documentation of hypertension-range measurements during clinical encounters and matters nationally as hypertension detection is central to cardiovascular risk management, quality measurement, and population health monitoring. Accurate use of G8477 supports clinical documentation, quality reporting, and administrative tracking of patients with elevated blood pressure.

The analysis covers major national payers including Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise explanation of the clinical meaning and appropriate service context for the code, an outline of common modifiers and related billing considerations (Data not available in the input if fields are missing), and guidance on what benchmarks and policy topics typically relate to elevated blood pressure billing. The publication also highlights typical sites of service and the service type associated with the code.

This summary provides clinicians, coders, and administrators with a clear reference to the code’s purpose, its relevance to quality programs and documentation, and the types of information included in the full publication.

AetnaBlue Cross Blue ShieldCigna HealthUnitedHealthcareMedicareG8477HCPCS Level IIblood pressurehypertensionambulatory carevital signsquality measurementclinical documentation

Billing Code Overview

HCPCS Level II code G8477 indicates that the most recent blood pressure reading for a patient meets hypertension-range thresholds: a systolic measurement of >= 140 mmHg and/or a diastolic measurement of >= 90 mmHg. This code is used to document elevated blood pressure readings observed during a clinical encounter.

Service type: Blood pressure assessment / clinical measurement
Typical site of service: Ambulatory clinic or outpatient setting where vital signs and blood pressure are measured

Clinical & Coding Specifications

Clinical Context

A 58-year-old male with a history of type 2 diabetes and hyperlipidemia presents to his primary care clinic for a routine chronic disease follow-up. At triage, the medical assistant measures vital signs and documents a blood pressure of 152/94 mmHg. The encounter is focused on blood pressure assessment and medication adherence review. The provider reviews the reading, documents the elevated measurement in the medical record, assesses for symptoms (headache, vision changes, chest pain), reviews home blood pressure logs, and determines next steps for hypertension management.

Typical workflow:

Patient registers and is roomed by clinical staff.
A medical assistant obtains vital signs including blood pressure using an automated or manual cuff and documents the most recent reading in the electronic health record.
The elevated blood pressure reading (systolic >= 140 mmHg and/or diastolic >= 90 mmHg) is flagged in the chart.
The provider reviews the measurement, documents clinical interpretation, compares with prior readings, and records the elevated BP as part of the visit’s clinical data.
Any orders (labs, medication changes, referrals) are placed as clinically appropriate and follow-up arranged.

Typical site of service: outpatient clinic / ambulatory primary care or specialty clinic (e.g., cardiology).

Coding Specifications

HCPCS G2159: Pneumococcal Vaccine Status or Prior Vaccine Reaction

HCPCS-G8576-NO-POSTOPERATIVE-RENAL-FAILURE-DIALYSIS-NOT-REQUIRED

HCPCS G8576: No Postoperative Renal Failure/Dialysis Not Required

HCPCS-G0270-MEDICAL-NUTRITION-THERAPY-REASSESSMENT-FOLLOW-UP

HCPCS G0270: Medical Nutrition Therapy Reassessment and Follow-Up

HCPCS-G2146-POSTOPERATIVE-LEG-PAIN-OUTCOME-VAS-IMPROVEMENT

HCPCS G2146: Postoperative Leg Pain Outcome (VAS Improvement)

HCPCS-G2024-SARS-COV-2-SPECIMEN-COLLECTION-SNF-HHA

HCPCS G2024: SARS-CoV-2 Specimen Collection in SNF or HHA

HCPCS-G0062-AUDIOLOGY-MIPS-SPECIALTY-SET

HCPCS G0062: Audiology MIPS Specialty Set

HCPCS-G9002-COORDINATED-CARE-FEE-MAINTENANCE-RATE

HCPCS G9002: Coordinated Care Fee, Maintenance Rate

HCPCS-G0515-COGNITIVE-SKILLS-TRAINING-15-MINUTE-UNIT

HCPCS G0515: Cognitive Skills Training, 15-Minute Unit

HCPCS-G4024-PEDIATRICS-MIPS-SPECIALTY-SET

HCPCS G4024: Pediatrics MIPS Specialty Set

HCPCS-G6047-DIHYDROTESTOSTERONE-LAB-TEST

HCPCS G6047: Dihydrotestosterone Laboratory Test

Showing 1–10 of 1996

Taxonomy Code	Specialty	Notes
`208D00000X`	Family Medicine	Primary care clinicians commonly document outpatient vital signs and manage hypertension.
`207Q00000X`	Internal Medicine	Internists frequently evaluate elevated blood pressure and manage medication adjustments.
`207RC0000X`	Cardiology	Cardiologists assess secondary causes and manage complex hypertension cases.
`163WA0400X`	Physician Assistant	PAs often obtain vitals and participate in hypertension follow-up in ambulatory settings.
`363L00000X`	Nurse Practitioner	NPs commonly perform assessments, counseling, and medication management for hypertension.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`I10`	Essential (primary) hypertension	Most common diagnosis associated with elevated blood pressure readings and management in ambulatory care.
`I11.9`	Hypertensive heart disease without heart failure	Hypertension-related cardiac involvement; relevant when assessing end-organ effects.
`I12.9`	Hypertensive chronic kidney disease with stage unspecified	Hypertension can cause or worsen chronic kidney disease; relevant to medication selection and monitoring.
`R03.0`	Elevated blood-pressure reading, without diagnosis of hypertension	Used when an elevated reading is documented but a formal diagnosis of hypertension is not yet established.
`E11.9`	Type 2 diabetes mellitus without complications	Common comorbidity that increases cardiovascular risk and influences hypertension management.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`99213`	Office or other outpatient visit for the evaluation and management of an established patient, typically 15 minutes	Common visit level for hypertension follow-up where elevated BP is reviewed and addressed.
`99214`	Office or other outpatient visit for evaluation and management of an established patient, typically 25 minutes	Used when moderate to high complexity medical decision making is required for hypertension management.
`99406`	Smoking and tobacco use cessation counseling, intermediate, greater than 3 minutes up to 10 minutes	Often provided as adjunct counseling for cardiovascular risk reduction during a hypertension visit.
`36415`	Collection of venous blood by venipuncture	Laboratory testing (e.g., metabolic panel, lipid panel) ordered as part of hypertension workup is commonly performed with venipuncture.
`93000`	Electrocardiogram, routine ECG with at least 12 leads; with interpretation and report	Ordered when there is concern for end-organ effects or cardiac symptoms associated with elevated blood pressure.

`22`	Increased procedural services	When work required is substantially greater than typically required for the service because of complications or severity.
`23`	Unusual anesthesia	When an anesthesia service is administered that would not normally be required.
`52`	Reduced services	When a service is partially reduced or eliminated at the physician’s discretion.
`53`	Discontinued procedure	When a procedure is started but discontinued due to extenuating circumstances or patient safety.
`54`	Surgical care only	When the primary surgeon provides surgical care only, with pre/post op care by another provider.
`55`	Post-operative management only	When the provider performs only postoperative management.
`56`	Pre-operative management only	When the provider performs only preoperative management.
`62`	Two surgeons	When two surgeons work together as primary surgeons performing distinct parts of a procedure.
`AS`	Physician assistant, nurse practitioner, or clinical nurse specialist services for assistant at surgery	When an APP provides assistant-at-surgery services that are reportable.
`CO`	Out-of-network	When services are furnished by a provider not participating with the payer.

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