Summary & Overview
HCPCS G2058: Chronic Care Management, Additional 20 Minutes
HCPCS Level II code G2058 represents incremental chronic care management services — each additional 20 minutes of clinical staff time directed by a physician or other qualified health care professional, billed per calendar month. The code supplements the primary chronic care management code to capture ongoing non-face-to-face management time and supports care coordination for patients with multiple chronic conditions. Nationally, accurate use of G2058 affects visibility of care coordination efforts and can influence payments for longitudinal chronic care programs.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a focused review of the code’s clinical context and billing relationships, national payer coverage considerations, and how G2058 interacts with primary chronic care management codes. The publication outlines benchmarks and policy-relevant guidance on code sequencing and monthly reporting constraints, and it highlights documentation and service delivery contexts important for appropriate reporting. Data not available in the input include specific payer fee schedules, associated taxonomies, and ICD-10 linkage tables.
Billing Code Overview
HCPCS Level II code G2058 describes chronic care management services, specifically each additional 20 minutes of clinical staff time directed by a physician or other qualified health care professional, billed per calendar month. The code is intended to be reported in addition to the primary chronic care management code and captures ongoing non-face-to-face management time beyond the initial 20 minutes.
Service type: Chronic care management / non-face-to-face clinical staff time directed by a physician or other qualified health care professional.
Typical site of service: Outpatient or ambulatory care settings where chronic care management is delivered remotely or through care coordination activities (for example, primary care clinics and other ambulatory practices).
Data not available in the input: Associated taxonomies, ICD-10 diagnoses, related codes, and service line.
Clinical & Coding Specifications
Clinical Context
A typical patient is an older adult with multiple chronic conditions such as type 2 diabetes mellitus, hypertension, and congestive heart failure who is enrolled in monthly chronic care management (CCM) services. The patient receives structured, non-face-to-face care coordination and management by clinical staff under the direction of a physician or other qualified health care professional. The workflow begins with an initial informed consent and comprehensive care plan established during a face-to-face or telehealth visit. Each calendar month clinical staff document and deliver recurring care activities (for example: medication reconciliation, care coordination with specialists, monitoring of symptoms and self-management, and patient or caregiver outreach). When total additional staff time beyond the initial 20 minutes reaches at least 20 more minutes in the same calendar month, the clinic bills G2058 in addition to the primary CCM code 99490. Typical sites of service include outpatient clinics, physician offices, and patient homes when services are provided remotely. Documentation includes time logs, care plan updates, communications, and evidence that services were directed by a physician or other qualified health care professional. G2058 is not reported for months when higher-level complex CCM codes (99487, 99489, 99491) are billed for the same patient and month.
Coding Specifications
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