Billing-unit calculator

Convert an administered dose to HCPCS billing units and see the arithmetic: rounding, vial utilization, and the quantity left over from single-dose containers.

The billing unit for G0140 (“Principal illness navigation - peer support by certified or trained auxiliary personnel under the direction of a physician or other practitioner, including a certified peer specialist; 60 minutes per calendar month, in the following activities: person-centered interview, performed to better understand the individual context of the serious, high-risk condition. ++ conducting a person-centered interview to understand the patient's life story, strengths, needs, goals, preferences, and desired outcomes, including understanding cultural and linguistic factors, and including unmet sdoh needs (that are not billed separately). ++ facilitating patient-driven goal setting and establishing an action plan. ++ providing tailored support as needed to accomplish the person-centered goals in the practitioner's treatment plan. identifying or referring patient (and caregiver or family, if applicable) to appropriate supportive services. practitioner, home, and community-based care communication. ++ assist the patient in communicating with their practitioners, home-, and community-based service providers, hospitals, and skilled nursing facilities (or other health care facilities) regarding the patient's psychosocial strengths and needs, goals, preferences, and desired outcomes, including cultural and linguistic factors. ++ facilitating access to community-based social services (e.g., housing, utilities, transportation, food assistance) as needed to address sdoh need(s). health education. helping the patient contextualize health education provided by the patient's treatment team with the patient's individual needs, goals, preferences, and sdoh need(s), and educating the patient (and caregiver if applicable) on how to best participate in medical decision-making. building patient self-advocacy skills, so that the patient can interact with members of the health care team and related community-based services (as needed), in ways that are more likely to promote personalized and effective treatment of their condition. developing and proposing strategies to help meet person-centered treatment goals and supporting the patient in using chosen strategies to reach person-centered treatment goals. facilitating and providing social and emotional support to help the patient cope with the condition, sdoh need(s), and adjust daily routines to better meet person-centered diagnosis and treatment goals. leverage knowledge of the serious, high-risk condition and/or lived experience when applicable to provide support, mentorship, or inspiration to meet treatment goals”) is not a simple amount, so enter it manually.

1 · HCPCS billing unit

G0140 — Principal illness navigation - peer support by certified or trained auxiliary personnel under the direction of a physician or other practitioner, including a certified peer specialist; 60 minutes per calendar month, in the following activities: person-centered interview, performed to better understand the individual context of the serious, high-risk condition. ++ conducting a person-centered interview to understand the patient's life story, strengths, needs, goals, preferences, and desired outcomes, including understanding cultural and linguistic factors, and including unmet sdoh needs (that are not billed separately). ++ facilitating patient-driven goal setting and establishing an action plan. ++ providing tailored support as needed to accomplish the person-centered goals in the practitioner's treatment plan. identifying or referring patient (and caregiver or family, if applicable) to appropriate supportive services. practitioner, home, and community-based care communication. ++ assist the patient in communicating with their practitioners, home-, and community-based service providers, hospitals, and skilled nursing facilities (or other health care facilities) regarding the patient's psychosocial strengths and needs, goals, preferences, and desired outcomes, including cultural and linguistic factors. ++ facilitating access to community-based social services (e.g., housing, utilities, transportation, food assistance) as needed to address sdoh need(s). health education. helping the patient contextualize health education provided by the patient's treatment team with the patient's individual needs, goals, preferences, and sdoh need(s), and educating the patient (and caregiver if applicable) on how to best participate in medical decision-making. building patient self-advocacy skills, so that the patient can interact with members of the health care team and related community-based services (as needed), in ways that are more likely to promote personalized and effective treatment of their condition. developing and proposing strategies to help meet person-centered treatment goals and supporting the patient in using chosen strategies to reach person-centered treatment goals. facilitating and providing social and emotional support to help the patient cope with the condition, sdoh need(s), and adjust daily routines to better meet person-centered diagnosis and treatment goals. leverage knowledge of the serious, high-risk condition and/or lived experience when applicable to provide support, mentorship, or inspiration to meet treatment goals

One billing unit equals

From the HCPCS descriptor, e.g. “10 mg” for “Injection, rituximab, 10 mg”.

2 · Dose administered

Dose

The amount given to the patient for this line.

3 · Container (optional)

Drug amount per vial or package item

Containers opened

Blank uses the minimum needed for the dose.

Known discarded amount

Optional. Overrides the container-based estimate.

Container type

Single-doseMulti-doseNot sure

4 · Payment limit (optional)

Medicare payment limit per billing unit

Leave blank to skip the derived dollar estimate.

Results update as you type.

Result

Enter the billing unit and the dose to see HCPCS units, the formula, and any discarded quantity.

Verify before billing

Payer rules and claim requirements must be verified. This calculator applies arithmetic conventions described in Medicare instructions — whole units, rounded up when a dose is not a multiple of the descriptor — and other payers may differ.

About discarded-drug modifiers (educational): for separately payable Part B drugs from single-dose containers, Medicare instructions describe reporting discarded amounts on a separate line with the JW modifier and using the JZ modifier when nothing was discarded. CodeRx does not determine whether a modifier applies to your claim. Check the current CMS discarded drugs guidance, your MAC, and the payer.

Vial optimizer

The combination of container sizes that leaves the least drug unused, and whole-container doses within a rounding threshold. Sizes come from the CMS NDC crosswalk for this code (billable units per item × billing unit).

Container sizes stocked

No crosswalked package sizes for this code — add sizes below.

Other sizes (mg, optional)

Rounding threshold (±%)

Use your institution’s policy. The HOPA 2017 position statement recommends rounding monoclonal antibodies and other biologics to the nearest vial within 10%.

Enter a dose above to see container combinations.

Disclaimer. This application provides informational coding and reimbursement reference data. It does not constitute legal, clinical, coding, or billing advice. Codes, payment amounts, payer rules, and coverage policies can change. Verify all information with current CMS publications, the applicable payer, and your organization’s compliance policies before submitting a claim. CodeRx is not affiliated with or endorsed by CMS, FDA, Medicare, or any payer.