G0024 HCPCS Level II Code: Principal illness navigation services, additional 30 minutes per calendar month (list separately in addition to g0023)

Contextual Map

Every relationship of G0024 in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.

Nearest codes (40)

• G0008 — Administration of influenza virus vaccine[Sibling]
• G0009 — Administration of pneumococcal vaccine[Sibling]
• G0010 — Administration of hepatitis b vaccine[Sibling]
• G0011 — Individual counseling for pre-exposure prophylaxis (prep) by physician or qualified health care professional (qhp) to prevent human immunodeficiency virus (hiv), includes hiv risk assessment (initial or continued assessment of risk), hiv risk reduction and medication adherence, 15-30 minutes[Sibling]
• G0012 — Injection of pre-exposure prophylaxis (prep) drug for hiv prevention, under skin or into muscle[Sibling]
• G0013 — Individual counseling for pre-exposure prophylaxis (prep) by clinical staff to prevent human immunodeficiency virus (hiv), includes: hiv risk assessment (initial or continued assessment of risk), hiv risk reduction and medication adherence[Sibling]
• G0017 — Psychotherapy for crisis furnished in an applicable site of service (any place of service at which the non-facility rate for psychotherapy for crisis services applies, other than the office setting); first 60 minutes[Sibling]
• G0018 — Psychotherapy for crisis furnished in an applicable site of service (any place of service at which the non-facility rate for psychotherapy for crisis services applies, other than the office setting); each additional 30 minutes (list separately in addition to code for primary service)[Sibling]
• and 32 more

Change history

• January 1, 2024 — Added to the code set [Change history]

Sources for this page

Every coding fact on this page is read from the datasets below. Nothing is AI-generated; MedCoder-derived relationships and editorial are labelled where they appear.

Code, descriptors, coverage and pricing attributes

CMS HCPCS Alpha-Numeric (ANWEB) release — July 2026 quarterly update

Change history and date-of-service validity

CMS HCPCS quarterly update files, ingested into the change ledger

Comparisons, relationships and the contextual map MedCoder-derived

Derived by MedCoder from the tabular notes and tables above; every derived relationship is marked as derived where it appears

All data sources and release dates

Nearest Codes in This Family

Official HCPCS Level II classifications closest to G0024 in its code family, with their registry titles.

• G0017 — Psychotherapy for crisis furnished in an applicable site of service (any place of service at which the non-facility rate for psychotherapy for crisis services applies, other than the office setting);…
• G0018 — Psychotherapy for crisis furnished in an applicable site of service (any place of service at which the non-facility rate for psychotherapy for crisis services applies, other than the office setting);…
• G0019 — Community health integration services performed by certified or trained auxiliary personnel, including a community health worker, under the direction of a physician or other practitioner; 60 minutes…
• G0022 — Community health integration services, each additional 30 minutes per calendar month (list separately in addition to g0019)
• G0023 — Principal illness navigation services by certified or trained auxiliary personnel under the direction of a physician or other practitioner, including a patient navigator; 60 minutes per calendar…
• G0027 — Semen analysis; presence and/or motility of sperm excluding huhner
• G0028 — Documentation of medical reason(s) for not screening for tobacco use (e.g., limited life expectancy, other medical reason)
• G0029 — Tobacco screening not performed or tobacco cessation intervention not provided during the measurement period or in the six months prior to the measurement period
• G0030 — Patient screened for tobacco use and received tobacco cessation intervention during the measurement period or in the six months prior to the measurement period (counseling, pharmacotherapy, or both),…
• G0031 — Palliative care services given to patient any time during the measurement period