HCPCS G9635: HRQoL Assessment Not Completed for Documented Reason - OpenPayer

Summary & Overview

HCPCS G9635: HRQoL Assessment Not Completed for Documented Reason

HCPCS Level II code G9635 documents when a health-related quality of life (HRQoL) assessment was not completed for a patient for documented reasons such as cognitive impairment or inability to read/write. This code matters nationally as HRQoL measures are increasingly used for population health management, value-based care programs, and quality reporting; accurate capture of reasons for non-assessment supports data integrity and appropriate care documentation. Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna, UnitedHealthcare, and Medicare. Readers will find a concise explanation of the code’s clinical intent, the service context for documenting non-assessment of HRQoL, and what to expect in payer coverage considerations. The publication also summarizes common modifier usage encountered with service documentation, identifies gaps where input data was not provided, and outlines the clinical scenarios that typically justify use of the code. This summary provides national context for health systems, billing staff, and compliance teams seeking clarity on when G9635 is applied and what information stakeholders commonly review when this code appears on claims.

AetnaBlue Cross Blue ShieldCignaUnitedHealthcareMedicareG9635HCPCS Level IIhealth-related quality of lifepatient-reported outcomesdocumentationambulatory carequality measurementcoding

Billing Code Overview

HCPCS Level II code G9635 indicates that a health-related quality of life (HRQoL) assessment was not completed due to documented reasons. Examples in the code description include situations where a patient has a cognitive or neuropsychiatric impairment that prevents completion of the HRQoL survey or where the patient cannot read or write to complete the questionnaire. The service type is the documentation of the reason for not performing a standardized HRQoL assessment as part of routine patient-reported outcomes collection. The typical site of service is the clinic or ambulatory care setting where HRQoL screening or survey administration would ordinarily occur.

Clinical & Coding Specifications

Clinical Context

A patient with a chronic neurologic condition attends a routine outpatient specialty visit in a neurology clinic or multidisciplinary oncology survivorship visit where health-related quality of life (HRQOL) screening is part of standard care. The clinician intends to document HRQOL using a validated patient-reported outcome instrument, but the patient is unable to complete the instrument due to a documented, legitimate reason such as cognitive impairment from advanced dementia, acute delirium, severe neuropsychiatric disorder, language illiteracy with no available interpreter, or acute vision impairment. The clinical workflow includes an attempt to offer the HRQOL tool, documentation of the specific reason for non-assessment in the medical record, and selection of billing code G9635 to indicate HRQOL was not assessed with a tool for documented reason(s). Typical sites of service are outpatient clinics, physician offices, inpatient hospital wards when routine screening is attempted, and post-acute or home health visits where standardized HRQOL questionnaires are part of quality measurement programs. Clinician documentation should note the tool attempted, the reason the patient could not complete it, alternative assessments performed (for example, caregiver-reported status or clinician observed functional assessment), and any follow-up plan for reassessment when appropriate.

Coding Specifications

Modifier	Description	When to Use
`22`	Increased procedural services

HCPCS G9685: Evaluation for Acute Change in Condition in Nursing Facility

HCPCS-G9924-DOCUMENTATION-MEDICAL-REASON-FOR-OMITTING-SAFETY-SCREEN

HCPCS G9924: Documentation of Medical Reason to Omit Safety Screening

HCPCS-G8430-MEDICAL-REASON-FOR-NOT-DOCUMENTING-MEDICATION-LIST

HCPCS G8430: Medical Reason for Not Documenting Medication List

HCPCS-G0559-POST-OPERATIVE-FOLLOW-UP-COMPLEXITY

HCPCS G0559: Post-Operative Follow-Up Visit Complexity

HCPCS-G8631-PROPHYLACTIC-ANTIBIOTIC-INELIGIBILITY-DOCUMENTATION

HCPCS G8631: Documentation of Ineligibility for Prophylactic Parenteral Antibiotics

HCPCS-G9409-NO-CARDIAC-TAMPONADE-PERICARDIOCENTESIS-30-DAYS

HCPCS G9409: No Cardiac Tamponade or Pericardiocentesis Within 30 Days

HCPCS-G0545-INFECTIOUS-DISEASE-COMPLEXITY-HOSPITAL-VISIT-ADD-ON

HCPCS G0545: Infectious Disease Visit Complexity, Inpatient/Observation

HCPCS-G2099-OLDER-PATIENTS-FRAILTY-ADVANCED-ILLNESS

HCPCS G2099: Patients 66+ with Frailty and Advanced Illness

HCPCS-G8658-LOWER-LEG-FOOT-ANKLE-RESIDUAL-SCORE-NOT-MEASURED

HCPCS G8658: Lower Leg/Foot/Ankle Residual Score Not Measured

HCPCS-G0028-MEDICAL-REASON-NOT-SCREENING-TOBACCO-USE

HCPCS G0028: Medical Reason for Not Screening for Tobacco Use

Showing 1–10 of 1996

Taxonomy Code	Specialty	Notes
207RN0000X	Neurology	Neurologists frequently encounter cognitive or neuropsychiatric impairment affecting HRQOL assessment.
208D00000X	Psychiatry & Neurology	Psychiatrists assess neuropsychiatric factors that may preclude patient-reported HRQOL completion.
207L00000X	Internal Medicine	Primary care physicians document HRQOL screening and reasons for non-assessment during chronic disease management.
208000000X	Family Medicine	Family medicine clinicians perform routine HRQOL screening and document inability to complete tools when present.
363L00000X	Palliative Medicine	Palliative care clinicians frequently document alternative assessments when patients cannot complete HRQOL instruments.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`F01.50`	Vascular dementia without behavioral disturbance	Cognitive impairment that may prevent completion of HRQOL instruments.
`F03.90`	Unspecified dementia, unspecified, without behavioral disturbance	Common cause of inability to complete patient-reported outcome measures.
`G30.9`	Alzheimer disease, unspecified	Progressive cognitive decline affecting ability to respond to questionnaires.
`F05`	Delirium, not induced by alcohol and other psychoactive substances	Acute confusional state that precludes valid patient-reported HRQOL assessment.
`F20.9`	Schizophrenia, unspecified	Severe psychotic disorder that may impair comprehension and accurate completion of HRQOL tools.
`H54.7`	Unspecified visual loss	Vision impairment that prevents completing written HRQOL questionnaires without accommodation.
`Z13.89`	Encounter for screening for other specified diseases and disorders	Used when screening processes include HRQOL assessments and documentation explains non-assessment.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`99406`	Smoking and tobacco use cessation counseling, intermediate, greater than 3 minutes up to 10 minutes	May be performed during the same visit as HRQOL screening; counseling is documented separately when provided.
`99407`	Smoking and tobacco use cessation counseling, intensive, greater than 10 minutes	Used when more intensive counseling occurs in the same encounter where HRQOL assessment could not be completed.
`96160`	Administration of patient-focused health risk assessment instrument (e.g., health-related quality of life) with scoring and documentation, per standardized instrument	Directly related: a completed HRQOL instrument would be reported with `96160`; `G9635` documents why it was not completed.
`96161`	Administration of caregiver-focused health risk assessment instrument for caregiver(s), with scoring and documentation	Used when caregiver-reported assessment substitutes for patient-reported HRQOL when patient cannot complete the tool.
`99497`	Advance care planning including the explanation and discussion of advance directives, first 30 minutes	May be documented in the same visit when HRQOL cannot be assessed due to serious illness and goals-of-care discussion occurs.

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