CPT code 38571 – Laparoscopic bilateral total pelvic lymphadenectomy

Key takeaways

CPT code 38571 reports a laparoscopic bilateral total pelvic lymphadenectomy, with no peri-aortic sampling.

CPT code 38570 is retroperitoneal node sampling, so it never stands in for a pelvic dissection.

Lead with the specific cancer code, such as C54.1 or C61, and let the op note prove both sides were cleared.

Common 38571 denials trace back to the wrong code in the series, a missing bilateral note or a bundled 49320.

CPT code 38571 covers a full pelvic node dissection on both sides

CPT code 38571 reports a surgical laparoscopy in which the surgeon removes the pelvic lymph nodes on both sides. The official descriptor reads “Laparoscopy, surgical; with bilateral total pelvic lymphadenectomy.” Surgeons mostly use it to stage cervical, endometrial, prostate and bladder cancers.

Two words carry the code. “Bilateral” means the left and right pelvic sidewalls were both dissected. “Total” means the node basins were cleared, not just sampled. Those basins typically include the obturator, external iliac and internal iliac (hypogastric) groups.

The American Medical Association maintains the CPT code set and these descriptors. The series sits in the Surgery section, under Hemic and Lymphatic Systems, in the laparoscopy subsection for lymph nodes (38570-38589).

38570, 38571, 38572 or 38573? Ask what the surgeon removed

The fastest way to pick a code in this series is to read the op note and answer a short run of questions in order. The flow below maps each answer to its code.

Were only retroperitoneal nodes sampled? Use 38570. It covers sampling, single or multiple, with no pelvic dissection at all.

Were both pelvic sidewalls fully dissected, and nothing more? Use 38571. This is the pure pelvic lymphadenectomy.

Did the surgeon also sample peri-aortic nodes? Use 38572. It already contains the 38571 work, so it replaces 38571 rather than joining it.

Did the case also include washings, peritoneal biopsies and an omentectomy? Look at 38573. It describes the complete laparoscopic staging set.

Report one code from this series per session. Because 38572 already includes 38571, billing both describes the same dissection twice. Likewise, pelvic dissection plus peri-aortic sampling is 38572, not 38571 plus 38570. Check the CMS NCCI edits for any other pairing you plan to report.

Walk through the 38571 procedure the way an auditor reads it

Knowing the surgical steps helps you check that the op note supports 38571. Each step below should be traceable in the note.

1. Positioning and ports. The patient lies in Trendelenburg position. The surgeon places a camera port near the umbilicus and two or three working ports.
2. Exposure. The peritoneum over the pelvic sidewall is opened. The external iliac vessels, the obturator nerve and the obturator fossa are identified.
3. Dissection on both sides. Nodal tissue is cleared from the obturator fossa and along the external and internal iliac vessels. The note should describe the left and right sides separately.
4. Specimen retrieval. The nodes go into a retrieval bag and come out through a port. Their side and basin are labeled for pathology.
5. Closure. Ports are removed under direct vision, and fascial defects are closed.

If the note skips the bilateral detail or never names the basins, a payer can argue the billed code doesn’t match the work.

Documentation checklist for a CPT code 38571 claim

The op note is the evidence for both the code and the medical necessity. Check it for these six details before the claim goes out.

• Laparoscopic approach. The note states the procedure was done laparoscopically. If the case converted to open, code the open procedure instead, such as 38770 for an open pelvic lymphadenectomy.
• Both sides named. The body of the note describes the left and right sidewalls. A “bilateral” procedure title alone is weak if the narrative covers one side.
• Basins named. The obturator, external iliac and internal iliac regions each appear in the narrative.
• Specimens labeled. Nodes are labeled by side and basin, for example “right obturator nodes,” and sent to pathology.
• Indication stated. The note names the cancer and the staging purpose, for example “staging for endometrial carcinoma.”
• Teaching physician presence. In a teaching setting, the teaching surgeon must document presence at the key portions of the procedure. Medicare sets this out in Claims Processing Manual Chapter 12, section 100.1.2. See our billing compliance guide for the wider audit picture.

ICD-10 codes that support CPT code 38571

Medical necessity for 38571 rests on the cancer being staged or treated. Endometrial cancer cases usually carry C54.1, and prostate cancer cases carry C61. The table lists the pairings you will see most often.

Code to the highest specificity the record supports. If the note says the right ovary, report C56.1, not C56.9. For ambulatory surgery, the ICD-10-CM Official Guidelines say to code the diagnosis the surgery was performed for. A confirmed postoperative diagnosis takes priority over the preoperative one.

Ovarian cancer staging often reaches beyond the pelvis. Before you settle on 38571 for a C56 case, check whether the note supports 38572 or 38573 instead.

Modifiers on 38571: What applies and what doesn’t

Most 38571 claims need no modifier at all. These four situations are the exceptions worth knowing.

The -51 rule above is Medicare’s standard multiple-surgery rule for procedures with a multiple-procedure indicator of 2. It is set out in Chapter 12, section 40.6 of the Claims Processing Manual. Check the indicator for 38571 in the fee schedule lookup.

If the surgeon could dissect only one side, the descriptor isn’t met. Some payers accept 38571 with modifier 52 for reduced services, with a note explaining why. Confirm the payer’s policy before you submit it that way.

Look up the Medicare rate for 38571 before you quote it

We don’t print RVUs or payment figures here, because CMS updates them every January. The CMS Physician Fee Schedule lookup gives the current values in a few steps.

1. Choose the current year and search for HCPCS code 38571.
2. Pick a national payment amount or your MAC locality.
3. Read the facility price, since this surgery happens in a hospital or an ambulatory surgery center (ASC).
4. Note the global period and the multiple-procedure indicator shown for the code.

The facility’s own payment is separate. Hospitals are paid under the outpatient or inpatient system, and ASCs under the ASC payment system.

How a 38571 claim moves from op note to payment

Seeing the full path helps you spot where a claim tends to stall.

1. Op note signed. The surgeon finalizes the note, including both sides and the basins.
2. Coding. The coder picks the series code, the ICD-10 code and any modifiers.
3. Charge entry. The charge is entered with the other procedures from the session.
4. Submission. The claim goes out electronically through a clearinghouse.
5. Payer edits. The payer runs NCCI, medically unlikely edits and its own policies.
6. Remittance. An electronic remittance advice (ERA) shows payment, reduction or denial with a reason code.
7. Follow-up. Denials are corrected and resubmitted, or appealed with the op note attached.

Common mistakes that trip up 38571 claims

These are the errors behind most rework on this code, along with the fix for each. The most frequent bundling slip is adding 49320, the diagnostic laparoscopy that a surgical laparoscopy already includes.

When the same denial keeps returning on 38571 claims, look at the process behind them. An op note template that never names both sides is a common culprit. A denial management workflow helps you sort those patterns from one-off errors. It also helps to know the denial codes that show up on your remittances.

Before you submit a 38571 claim, run this checklist

• The op note describes both pelvic sidewalls and names the basins cleared.
• No peri-aortic sampling or staging extras are documented, or you have moved to 38572 or 38573.
• The approach stayed laparoscopic throughout.
• The first-listed diagnosis is the specific cancer code.
• 49320 and any other code CPT or NCCI bundles are off the claim.
• Modifiers match the session: -51 if the payer wants it, no -50, -RT or -LT.
• Prior authorization is on file where the plan requires it.

A claim that passes these checks is far more likely to be a clean claim on first submission.

How Pabau keeps 38571 claims moving after surgery

Coding 38571 correctly happens in the op note and the coder’s review. The slow part comes next: sending the claim and chasing what comes back.

Pabau, the practice management platform we build, sends claims to payers electronically, with US claims routed through our Claim.MD integration. Each claim keeps its status on record, so your team sees what was paid and what was denied.

Our claims management software also keeps denials in one place. When 38571 claims keep coming back for the same reason, you can see the pattern and fix it at the source.

Track every 38571 claim through to payment

Pabau submits your claims electronically and keeps every denial in view, so your team can follow up quickly. See how surgical practices use it day to day.

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Conclusion

Before any 38571 claim leaves the practice, read the op note against the four codes in the series. Neighboring codes differ by a single node group, so the wording of the note settles which code the payer sees.

Make that check part of charge entry on every case. It costs a few minutes, and it catches wrong-code and bundling errors before a payer turns them into rework and resubmissions.

Book a demo to see how Pabau tracks your surgical claims from submission to payment.

Continue your research

Worried about audits on high-value surgical codes? Medical billing compliance guide covers the audit and documentation standards that prevent recoupment on high-value surgical procedures.

Submitting claims through a clearinghouse for the first time? How medical claims clearinghouses work explains the 837P transaction flow, payer enrollment, and real-time eligibility checking.

Getting ERA responses you can’t interpret? Electronic remittance advice explained breaks down CARC and RARC denial codes so your billing team can respond to 38571 denials correctly.

Frequently asked questions