Specialty Billing Built for Gynecologic Oncology Practices

Pelvic lymphadenectomy is included in the radical hysterectomy base codes 58210 and 58200, so it is not billed separately when performed as part of those procedures. However, para-aortic retroperitoneal lymph node dissection (38770) is billed as an add-on when performed in addition to the pelvic dissection, and open lymph node biopsy (38530) is billed when only a sampling is performed. We verify NCCI edits before submission so lymphadenectomy is coded at the correct level — included in the base when bundled, add-on when extended, and distinct when sampled — preserving the legitimate lymph-node revenue without triggering bundling denials.

Chemotherapy IV infusion is billed as a hierarchy: 96413 (chemotherapy administration, intravenous infusion, first hour) is the base, and 96415 (each additional hour) is billed for every hour of infusion beyond the first. Hydration is billed separately with 96521 (first hour) when it is the primary service, and non-chemo drug IV infusion uses 96365 (first hour) for supportive agents such as antiemetics. The chemotherapy administration code must be sequenced first when chemo is the primary reason for the encounter. We bill the 96413 first-hour base on every chemo infusion, add 96415 for each additional hour, separate hydration and non-chemo infusions with the correct codes, and append the proper J-code for the drug supply — so every administration hour and every drug unit is captured.

When a single-use vial of a chemotherapy drug is partially administered and the remainder is discarded, the discarded portion is reported on a separate claim line with the JW (discarded drug) modifier, while the administered portion is billed on its own line with the J-code for the drug (for example J9170 for docetaxel). Medicare and most payers require JW reporting for any discarded amount from a single-use vial so the practice is reimbursed for the wasted units. We log every discarded unit, report it on the JW modifier line with the drug J-code, and keep the waste documentation the payer requires — recovering revenue that most practices lose by billing only the administered dose.

Radical hysterectomy (58200/58210) carries a 90-day global period, meaning all routine post-operative visits and related care are bundled into the surgical payment and cannot be billed separately. To capture legitimate additional revenue we track the global period in the practice management system, document modifier 22 (increased procedural service) when the radical surgery is unusually complex — such as extensive adhesions, exenteration, or reconstruction — and bill only services that are genuinely unrelated or staged with the correct modifier (58 for staged, 78 for unplanned return). We do not bill routine global follow-up separately, and we ensure every legitimately billable out-of-global service is captured with the right modifier.

Modifier 25 is appended to an E/M code when a significant, separately identifiable evaluation and management service is performed on the same day as a procedure — for example a pre-operative assessment or a separately documented decision-making visit on the day of a minor procedure or an infusion. Within a 90-day global period, modifier 25 only supports an E/M that is unrelated to the global surgery, so we document the medical necessity and the separate nature of the visit. Without modifier 25, the same-day E/M is denied as bundled into the procedure; without supporting documentation, the modifier 25 claim is denied on audit. We pair every modifier 25 with the supporting note so the E/M is paid rather than denied.