Rh Immune Globulin Billing

The two-line claim

Every in-office Rh immune globulin dose produces a product line and an administration line:

Miss either line and you gave away either the drug or the work. The most common revenue leak is billing the product and forgetting 96372; the injection is a payable service in its own right.

Two coding variants to know:

• HCPCS instead of CPT for the product. Some payers, Medicaid programs especially, want the product reported as J2790 (full dose) rather than 90384. Same vial, different code set. Check the payer’s drug-billing preference once and store it.
• Mini-dose. First-trimester events sometimes call for the smaller dose, reported with 90385. The admin code stays 96372 either way.

The 28-week dose and the global package

ACOG-standard care gives Rh-negative, unsensitized patients a routine prophylactic dose around 28 weeks. That encounter usually happens inside a scheduled global antepartum visit, which is exactly why practices underbill it: the visit is global, so everything that happened at the visit feels global.

It is not. The global OB package covers the routine visits themselves. Drugs and their administration are outside it. At the 28-week visit:

• The visit note stays inside the global, no E/M billed.
• 90384 (or J2790) and 96372 both bill separately that day.

The same logic covers event-driven doses: after bleeding, trauma, external version, or an amniocentesis (59000), the product and admin bill on their own whenever the practice supplies and gives the drug. The antibody screen confirming the patient is unsensitized is separately billable lab work as well.

Postpartum dosing

The postpartum dose, given within 72 hours of delivering an Rh-positive infant, almost always happens in the hospital. The facility supplied the drug and the nursing staff injected it, so the facility bills both pieces; the practice bills nothing for it. The only time the practice bills a postpartum dose is the unusual case where it is administered in the office from the practice’s own stock, for example after a home birth or an early discharge that missed the dose. Then the same two-line pattern applies.

Denial patterns

• CO-97 on 96372, bundled into a same-day E/M. If the only same-day service was a global antepartum visit, appeal: no E/M was billed, so there is nothing to bundle into. If a separate problem E/M was billed that day, put modifier 25 on the E/M and the pair pays.
• Product denied for wrong code set. A 90384 denial with a remark about an invalid or non-preferred code usually means the payer wanted J2790. Resubmit in the payer’s preferred code set; this is a swap, not an appeal.
• CO-50 on a repeat dose. Payers may question a second full dose in the same pregnancy. Link the triggering event (bleeding episode, trauma, procedure) as the diagnosis and it resolves.

FAQ

Is the 28-week Rh immune globulin dose included in the global OB package? No. Both the product and the administration bill separately, even when the dose is given during a routine global visit. The global covers the visit, not the drug or the injection.

Do I bill an E/M with the 28-week dose? Not if the encounter was a routine antepartum visit; the visit is global. Bill only the product and admin lines. Add an E/M with modifier 25 only when a separate, documented problem was addressed.

90384 or J2790? Both describe a full dose of Rh immune globulin. Commercial payers commonly accept 90384; many Medicaid programs and some commercial plans require the HCPCS J2790. Follow each payer’s preference.

Who bills the postpartum dose? The hospital, in nearly all cases, because the facility supplied and administered it. The practice bills only when the dose comes from its own stock in the office.

Does a dose after amniocentesis bill separately from the procedure? Yes. 59000 pays for the procedure; the immune globulin product and 96372 bill on their own lines the same day.