G9647 HCPCS Reimbursement & Policy Benchmarks | OpenPayer

Summary & Overview

HCPCS G9647: mRS Not Obtained at 90-Day Follow-Up

HCPCS Level II code G9647 is used to indicate patients in whom the modified Rankin Scale (mRS) score could not be obtained at the routine 90-day follow-up. This code captures an absence of a documented functional outcome assessment after an index cerebrovascular event and is relevant for quality reporting, outcome registries, and administrative records that track 90-day post-event status. Nationally, consistent use of G9647 helps differentiate missing outcome data from documented scores and supports accurate reporting of follow-up completeness.

Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find context on clinical purpose and typical sites of service, plus guidance on which payers are considered in coverage and benchmarking discussions. The publication outlines how G9647 fits into post-stroke outcome documentation, potential implications for quality measurement and registries, and notes where input data is not available.

Data not available in the input: Associated taxonomies, specific ICD-10 diagnoses, related billing codes, and detailed service line definitions.

AetnaBlue Cross Blue ShieldCigna HealthUnitedHealthcareMedicareG9647HCPCS Level IImodified Rankin Scale90-day follow-uppost-stroke outcomeoutcome assessmentquality reportingregistry documentation

Billing Code Overview

HCPCS Level II code G9647 indicates patients for whom the modified Rankin Scale (mRS) score could not be obtained at 90-day follow-up. This code documents the absence of a documented 90-day mRS assessment for a patient originally tracked for post-stroke functional outcome.

Service type: Outcome assessment documentation (absence of 90-day mRS)
Typical site of service: Outpatient follow-up or post-discharge outcome tracking (clinic, telephone follow-up, or registry follow-up)

Clinical & Coding Specifications

Clinical Context

A typical patient scenario involves a patient who suffered an acute cerebrovascular event (for example, ischemic stroke) and was enrolled in routine outcome surveillance or a quality registry requiring modified Rankin Scale (mRS) assessment at 90 days post-event. At the 90-day follow-up contact — which may occur in-person, by telephone, or via telehealth — the clinician or trained assessor is unable to obtain an mRS score. Common reasons include the patient being deceased, lost to follow-up, incapacitated with no available proxy, severe cognitive or communication impairment preventing reliable assessment, or refusal to participate. The clinical workflow documents the attempted 90-day contact, the reason the G9647 billing code is reported ("Patients in whom mrs score could not be obtained at 90 day follow-up"), supporting clinical notes (dates/times of attempts, parties contacted), and any alternative outcome information obtained (e.g., vital status, rehospitalization). Typical site of service is outpatient clinic, telehealth/telephone follow-up, or registry/quality program offices. The service type is outcome assessment/registry follow-up reporting rather than direct therapeutic intervention.

Coding Specifications

Modifier	Description	When to Use
`22`	Increased procedural services	Use when documentation supports substantially greater work for the follow-up attempt (rare for this code).

HCPCS G9826: Patient Transferred After Initiation of Chemotherapy

HCPCS-G9860-HOSPICE-STAY-LESS-THAN-THREE-DAYS

HCPCS G9860: Patient Spent Less Than Three Days in Hospice Care

HCPCS-G8667-UPPER-EXTREMITY-IMPAIRMENT-RESIDUAL-SCORE-ZERO-OR-GREATER

HCPCS G8667: Residual Score for Elbow, Wrist or Hand Impairment

HCPCS-G9763-HPV-IMMUNIZATION-GAP-ADOLESCENTS

HCPCS G9763: HPV Immunization Gap for Adolescents

HCPCS-G8710-PATIENT-PRESCRIBED-ANTIBIOTIC

HCPCS G8710: Patient Prescribed Antibiotic

HCPCS-G9666-LDL-C-70-189-MG-DL-RESULT

HCPCS G9666: Highest Fasting or Direct LDL-C 70–189 mg/dL

HCPCS-G2210-NECK-IMPAIRMENT-RESIDUAL-SCORE-UNMEASURED

HCPCS G2210: Residual Neck Impairment Score, Unmeasured

HCPCS-G9125-CML-PHILADELPHIA-BCR-ABL-BLAST-PHASE-NOT-IN-REMISSION

HCPCS G9125: CML Philadelphia/BCR-ABL Positive, Blast Phase Not in Remission

HCPCS-G0050-CATHETER-CARE-LIMITED-LIFE-EXPECTANCY

HCPCS G0050: Catheter Care for Patients with Limited Life Expectancy

HCPCS-G9541-FILTER-REMOVED-WITHIN-3-MONTHS

HCPCS G9541: Filter Removed Within 3 Months of Placement

Showing 1–10 of 1996

Taxonomy Code	Specialty	Notes
`207RG0100X`	Neurology	Neurologists typically oversee stroke outcome assessments and registry follow-up.
`2084N0400X`	Vascular Neurology	Subspecialists who manage cerebrovascular patients and outcome measurement.
`363L00000X`	Nurse Practitioner	NPs commonly perform 90-day follow-up assessments and document reasons mRS was unobtainable.
`367500000X`	Physician Assistant	PAs often conduct telephone or clinic follow-ups for outcome data collection.
`103T00000X`	Clinical Coordinator/Research	Clinical research coordinators or stroke program coordinators who collect registry data.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`I63.9`	Cerebral infarction, unspecified	Common primary diagnosis for patients scheduled for 90-day mRS outcome assessment after ischemic stroke.
`I61.9`	Intracerebral hemorrhage, unspecified	Hemorrhagic stroke patients also undergo 90-day outcome assessment; mRS may be unobtainable in severe cases.
`I69.398`	Sequelae of other cerebrovascular disease, hemiplegia and hemiparesis following cerebral infarction	Used when documenting long-term deficits for which an mRS would typically be assessed at 90 days.
`G81.90`	Hemiplegia, unspecified affecting unspecified side	Functional impairment codes that are relevant to determining disability but may preclude reliable mRS scoring if severe.
`Z98.890`	Other specified postprocedural states	Used when documenting post-hospitalization status during follow-up where mRS assessment could not be obtained.
`R99`	Ill-defined and unknown cause of mortality	Used if the patient is deceased and no mRS can be obtained at 90 days; documents vital-status outcome context.

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 in-person 90-day clinic follow-up visits where mRS would normally be obtained; billed when a visit occurs but mRS cannot be completed.
`99443`	Telephone evaluation and management service provided by a physician to an established patient, 21-30 minutes	Used for substantial telephone follow-up attempts at 90 days when mRS assessment is attempted remotely but unobtainable.
`98966`	Telephone assessment and management service by a qualified nonphysician health care professional, 5-10 minutes	Used when an NP/PA or other qualified clinician performs a brief telephone follow-up attempt and cannot obtain mRS.
`99334`	Domiciliary or rest home visit for the evaluation and management of an established patient, typically 25 minutes	Applicable when a home or facility visit is performed to obtain outcomes and mRS cannot be obtained due to patient condition or lack of proxy.
`99458`	Prolonged service, additional time on the same date	Used if extra time is spent attempting to obtain outcome data beyond typical visit duration before concluding mRS unobtainable.

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