CPT code 74022 – Acute abdomen series X-ray

Key takeaways

CPT code 74022 covers a complete acute abdomen series: two or more abdominal views, such as supine, erect or decubitus, plus a single chest view.

Without a documented chest view, the study codes to 74018, 74019 or 74021, depending on how many abdominal views were taken.

Modifiers -26 and -TC split global billing, and -59 or -XS applies only when a separately ordered 71046 is billed on the same date.

The 2026 national non-facility Medicare rate is about $49, so check your MAC locality in the CMS fee schedule before quoting it.

Search the radiology report for the word “chest” before you submit, because a missing chest view is the most common 74022 denial.

CPT code 74022 means two abdominal views plus one chest view

CPT code 74022 is the code for a complete acute abdomen series, as defined by the American Medical Association. The official descriptor reads:

Radiologic examination, abdomen; complete acute abdomen series, including 2 or more views of the abdomen (eg, supine, erect, decubitus), and a single view chest.

In plain terms, you need at least two abdominal views and one chest view from the same series.

That chest view is what makes the series complete. Leave it out and the study drops to a lower abdomen code, however many abdominal views were taken. Teams order the series for suspected bowel obstruction, free air under the diaphragm or an acute abdomen.

The code sits in the Radiology section of CPT (70010-79999), under Diagnostic Radiology. Billed without a modifier, it is a global code. The claim then covers the technical work (equipment, staff, imaging) and the radiologist’s interpretation and report.

What the report has to show

The report needs to name both parts of the series.

• Two or more abdominal views: Supine, erect and decubitus are the examples CPT gives. The supine view shows the bowel gas pattern, while an erect or decubitus view shows air-fluid levels and free air.
• One chest view: A single view taken as part of the same series. It can show free air under the diaphragm or a chest cause of abdominal pain.

List each view by name. A report that says “three views of the abdomen” without naming the chest view won’t support 74022 on review.

The chest view, not the view count, separates 74022 from 74021

The 74018-74022 family turns on two questions. Was a chest view part of the series, and how many abdominal views were taken?

Read the family as a decision rather than a ladder. Many coders assume 74022 needs three abdominal views because 74021 does. It needs two, plus the chest view, and the diagram below shows the order to check them in.

The errors run both ways. Billing 74022 without a documented chest view is upcoding, and recoupment audits look for it. Splitting a complete series into 74019 plus a single chest view code (71045) is the reverse mistake, because CPT directs that combination to 74022.

Billing 71046 with 74022 takes a separate order

The chest view inside 74022 is a single view, and it is bundled into the series. You can’t bill it again on its own.

Sometimes the patient also needs a full two-view chest study, 71046, as a separate exam on the same date. When both studies are medically indicated and separately ordered, 74022 and 71046 can be billed together.

The CMS National Correct Coding Initiative (NCCI) may apply a bundling edit to this pair, so check the current edit table first. Where an edit exists, use modifier -59 or the more specific -XS. Separate orders and separate reports have to back it up.

Don’t add -59 by default to push a claim through. The record has to explain why a full chest study was needed on top of the chest view already in the series.

A KUB is 74018, never a short acute series

A KUB (kidneys, ureters, bladder) is a single supine abdominal film, so it maps to 74018. Billing 74022 for a KUB-only study is upcoding, even when the order mentions abdominal pain.

Keep 74022 for presentations that need the full series, such as suspected obstruction, perforation or acute abdominal pain. A routine KUB for kidney stone follow-up stays at 74018.

Modifiers for 74022 follow who owns the equipment

The right modifier depends on who owns the equipment and who reads the films. A mismatch in a split-billing setup is a common denial trigger.

In an office that owns its imaging equipment and employs the radiologist, the global code covers both components.

In a hospital outpatient setting, the facility bills the technical component and the radiology group bills the professional one. If one entity bills the global code and a component for the same date, the claim reads as a duplicate.

Documentation that keeps 74022 safe on review

Medical necessity reviews of 74022 come down to two records, the radiology report and the ordering provider’s note. Together they have to show that the full series was done and clinically warranted.

• Clinical indication: The ordering note states why the series was needed, such as suspected bowel obstruction, acute abdominal pain or trauma.
• Views obtained: The report lists two or more abdominal views (for example supine, erect or decubitus) plus the single chest view. A generic “abdomen series” that never names the chest view isn’t enough.
• Findings per view: Each view gets its own findings statement, even when the finding is “unremarkable.”
• Signature: The interpreting radiologist’s signature confirms the complete series was reviewed and reported.
• ICD-10-CM diagnosis code: The diagnosis must support an acute presentation. Suitable pairings include R10.0 (acute abdomen), R10.9 (unspecified abdominal pain) and K56.609 (unspecified intestinal obstruction, unspecified as to partial versus complete obstruction). A routine screening code is not.

The 2026 Medicare rate for CPT code 74022 is about $49

Medicare pays 74022 under the annual CMS Medicare Physician Fee Schedule (MPFS). Rates change by locality and by setting (facility or non-facility). The figure below is a 2026 national estimate, so confirm your MAC locality rate before you rely on it.

Commercial rates depend on each payer contract and market. Check the contract itself rather than treating Medicare as a benchmark.

How a 74022 claim moves from order to payment

Most 74022 problems start well before the claim reaches the payer. This is the usual path, with the point where each step tends to slip.

1. Order: The ordering provider requests an acute abdomen series and records the clinical reason. A vague “abdominal X-ray” order invites the wrong study.
2. Exam: The technologist takes the abdominal views and the chest view. If the patient can’t stand, a decubitus view replaces the erect one.
3. Report: The radiologist names every view and gives findings for each. This is where the chest view most often goes missing.
4. Coding: The coder matches the views to the code, adds a supporting ICD-10-CM code and sets the modifier for the billing setting.
5. Submission and remittance: The claim goes through the clearinghouse to the payer. The electronic remittance (835 file) comes back with payment or a denial reason code.

Six reasons 74022 claims get denied

Denials for 74022 cluster around documentation, bundling and billing the wrong level. Good denial management workflows catch each one at the step where it starts, not after the remittance arrives.

• Chest view not documented: The most common reason. The report lists abdominal views but never names the chest view, so the claim can’t stand as a complete series.
• Upcoding from 74018, 74019 or 74021: Auditors look for 74022 billed without a chest view, or with only one abdominal view. The views in the report must match the billed code.
• Bundling with 71046 without -59 or -XS: When both codes share a date without a modifier, NCCI edits may deny the column 2 code. NCCI updates the edit tables every quarter.
• Weak clinical indication: The ICD-10-CM code has to support an acute presentation. Pairing 74022 with a routine wellness or preventive code draws a medical necessity denial.
• Wrong modifier in split billing: A radiology group that bills the global code while the hospital bills -TC triggers a duplicate claim denial.
• Timely filing: Medicare allows 12 months from the date of service, and many commercial payers allow 90 or 180 days. A late claim can’t be rescued on medical necessity grounds.

ICD-10 codes that support medical necessity for 74022

The diagnosis on the claim has to support an acute presentation. These ICD-10-CM codes are common pairings for 74022.

Use the most specific code the note supports, such as K56.2 for volvulus rather than K56.609. R10.9 only holds when the note documents the acute picture. Payers increasingly compare the diagnosis with the report findings during automated review, and our ICD-10-CM code library lists the more specific options.

Before you submit a 74022 claim, check these five points

Run this quick check on every 74022 claim before it leaves the practice.

1. Chest view named: The word “chest” appears in the report’s list of views. If it doesn’t, code the abdominal views alone (74018, 74019 or 74021) until the report is amended.
2. Two or more abdominal views: One abdominal view plus a chest view doesn’t meet the 74022 descriptor.
3. NCCI pairs checked: CMS updates the edit tables every quarter, so check the current pair whenever 71046 or another imaging code shares the date.
4. Modifier matches the setting: Global, -26 or -TC, agreed between the radiology group and the facility.
5. Diagnosis supports an acute picture: R10.0 is the cleanest pairing. Use a more specific code where the note supports it.

After payment, watch the denial reason codes. The remittance lists a Claim Adjustment Reason Code (CARC) for each denial. Tracking them for 74022 over 90 days shows whether your denials come from documentation, bundling or modifiers. Our guide to electronic remittance advice explains how to read the 835 file.

How Pabau keeps 74022 claims clean from checkout to remittance

In many imaging practices, the coder reads the report in one system and types the charge into another. Eligibility gets checked on a payer portal. Each handoff is a chance to lose the chest view or the right modifier.

Pabau, our all-in-one practice software, handles insurance claims inside the patient record. Its claims software for radiology and other specialties pre-fills the CMS-1500 from the record. The 74022 charge line and diagnosis codes carry over without retyping. Claims can’t be sent until the required fields are complete.

In the US, claims go out through Claim.MD. Your team gets real-time eligibility checks before the study date, claim-status tracking and ERA posting in the same place. That leaves coders more time for the report check that decides 74022.

Send cleaner radiology claims from one system

Pabau pre-fills claims from the patient record and checks required fields before sending. US claims go through Claim.MD, with real-time eligibility checks and ERA posting in the same platform.

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Conclusion

Treat the chest view as the gate for 74022. If the report names it alongside two or more abdominal views, bill 74022 with confidence. If it doesn’t, code the abdominal views and ask for an amendment rather than hoping the payer won’t look.

The trade-off is a few minutes of checking against weeks of appeals. Build the “chest” search into charge entry, and the most common 74022 denial stops before it starts.

Want radiology claims, eligibility checks and remittances in one place? Book a demo to see how Pabau helps your billing team get 74022 paid on the first submission.

Continue your research

Need to understand how clearinghouses route your radiology claims? Medical claims clearinghouse guide explains how electronic claims travel between providers and payers.

Tracking denial trends across your radiology practice? Denial codes in medical billing covers how to read Claim Adjustment Reason Codes and prioritize appeals by root cause.

Want to confirm coverage before the imaging study? Insurance eligibility verification walks through payer checks that flag coverage problems before the patient arrives.

Billing a separate single-view chest X-ray? CPT code 71045 covers when a one-view chest study is billed on its own.

Billing imaging to Medicare for the first time? Medicare billing guide explains how Medicare claims, fee schedules and MACs fit together.

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