HCPCS Code J0640: Injection, Leucovorin Calcium, Per 50 mg

Learn about the HCPCS code J0640 for "Injection, leucovorin calcium, per 50 mg" through this short guide.

## **What is the HCPCS code J0640 for?** The HCPCS code J0640 is a J code, which means it's part of a massive group of codes for medication, many of which are injected. This code is meant to designate the injection of leucovorin calcium, specifically every 50 mg dosage. Leuvocorin calcium is a drug administered via intravenous infusion, intramuscularly, or subcutaneously. The injection procedure will depend on the medical requirements determined by the healthcare professional handling the patient. This drug is meant to counter the negative effects of some chemo drugs (such as high-dose methotrexate therapy and fluorouracil) to enhance the effectiveness of cancer treatments for the likes of advanced colorectal cancer, colon cancer, etc. It also treats certain folate-deficiency anemias when oral therapy is impractical. Please note that this isn't a diagnostic injection.

## **Documentation requirements for J0640** As with any HCPCS code, you need to have sufficient documentation before filing a claim for them, or else risk claim rejections. For J0640 in particular, here are some examples of what you need: - The full name of the patient - The name and address of the facility where the injection was administered - The full name and credentials of the healthcare professionals who handled the patient - The date and time of the drug administration by injection (please be clear and detail the method of injection), including start and stop times - Patient records showing they have been diagnosed with certain cancers or conditions that this drug is often used for, like folic acid deficiency, to support medical necessity - Blood test results - Other chemotherapy drugs used - Imaging test results showing locations and sizes of tumors (if any) - The exact dosage

## **Billing requirements for J0640** Besides the documentation requirements above, it would be best for you to take note of or have the following as well: - Any relevant ICD code(s) related to the patient's condition - Bill each 50 mg increment as a single unit under J0640 (e.g., 150 mg → quantity = 3) - Leucovorin doesn’t require J-waste modifiers (JW/JZ) - Infusion administration may require adding CPT administration codes (e.g., 96413 for chemotherapy administration; 96365 if you administered the injection via IV; 96372 if you administered it via IM), depending on payer policies and clinical context

## **Other similar codes** - **J1165** - Injection, phenytoin sodium, per 50 mg - **J9245** - Injection, melphalan hydrochloride, 50 mg - **J2675** - Injection, progesterone, per 50 mg - **J9045** - Injection, carboplatin, 50 mg - **J0610** - Injection, calcium gluconate, per 10 ml

Frequently asked questions

It depends on the method. If it's intramuscular or subcutaneous, it shouldn't take longer than 10 or 15 minutes. But if it's intravenous, it'll definitely take longer.

They very likely have to fast several hours before the injection, or at least avoid certain food.

There will be pain and discomfort in the injection site. It's also possible for the patient to feel nauseous after the injection. The adverse complications to look out for are allergic reactions, injection site infection, and imbalance of electrolytes or folic acid.