ICD-10-PCS Tabular Index · Section B · FY 2027 B43

B43 Magnetic Resonance Imaging (MRI) - Lower Arteries ICD-10-PCS

The B43 code range contains 25 ICD-10-PCS codes for Magnetic Resonance Imaging (MRI) procedures on the lower arteries. 24 of the codes are billable and valid for inpatient claim submission in fiscal year 2027.

✓ Built from the official CMS FY 2027 datasetEffective Oct 1, 2026 – Sep 30, 2027
25
Procedure Codes
24
Billable Codes
B43
Characters 1–3
B4
Parent Body System

Root Operation Definition

Magnetic Resonance Imaging (MRI): Computer reformatted digital display of multiplanar images developed from the capture of radio frequency signals emitted by nuclei in a body site excited within a magnetic field.

ICD-10-PCS

Codes in the B43 Range 25 codes · 24 billable

25 of 25 shown
  • B43 Imaging, Lower Arteries, Magnetic Resonance Imaging (MRI)Non-billable header
  • B430Y0Z Magnetic Resonance Imaging (MRI) of Abdominal Aorta using Other Contrast, Unenhanced and Enhanced
  • B430YZZ Magnetic Resonance Imaging (MRI) of Abdominal Aorta using Other Contrast
  • B430ZZZ Magnetic Resonance Imaging (MRI) of Abdominal Aorta
  • B431Y0Z Magnetic Resonance Imaging (MRI) of Celiac Artery using Other Contrast, Unenhanced and Enhanced
  • B431YZZ Magnetic Resonance Imaging (MRI) of Celiac Artery using Other Contrast
  • B431ZZZ Magnetic Resonance Imaging (MRI) of Celiac Artery
  • B434Y0Z Magnetic Resonance Imaging (MRI) of Superior Mesenteric Artery using Other Contrast, Unenhanced and Enhanced
  • B434YZZ Magnetic Resonance Imaging (MRI) of Superior Mesenteric Artery using Other Contrast
  • B434ZZZ Magnetic Resonance Imaging (MRI) of Superior Mesenteric Artery
  • B438Y0Z Magnetic Resonance Imaging (MRI) of Bilateral Renal Arteries using Other Contrast, Unenhanced and Enhanced
  • B438YZZ Magnetic Resonance Imaging (MRI) of Bilateral Renal Arteries using Other Contrast
  • B438ZZZ Magnetic Resonance Imaging (MRI) of Bilateral Renal Arteries
  • B43CY0Z Magnetic Resonance Imaging (MRI) of Pelvic Arteries using Other Contrast, Unenhanced and Enhanced
  • B43CYZZ Magnetic Resonance Imaging (MRI) of Pelvic Arteries using Other Contrast
  • B43CZZZ Magnetic Resonance Imaging (MRI) of Pelvic Arteries
  • B43FY0Z Magnetic Resonance Imaging (MRI) of Right Lower Extremity Arteries using Other Contrast, Unenhanced and Enhanced
  • B43FYZZ Magnetic Resonance Imaging (MRI) of Right Lower Extremity Arteries using Other Contrast
  • B43FZZZ Magnetic Resonance Imaging (MRI) of Right Lower Extremity Arteries
  • B43GY0Z Magnetic Resonance Imaging (MRI) of Left Lower Extremity Arteries using Other Contrast, Unenhanced and Enhanced
  • B43GYZZ Magnetic Resonance Imaging (MRI) of Left Lower Extremity Arteries using Other Contrast
  • B43GZZZ Magnetic Resonance Imaging (MRI) of Left Lower Extremity Arteries
  • B43HY0Z Magnetic Resonance Imaging (MRI) of Bilateral Lower Extremity Arteries using Other Contrast, Unenhanced and Enhanced
  • B43HYZZ Magnetic Resonance Imaging (MRI) of Bilateral Lower Extremity Arteries using Other Contrast
  • B43HZZZ Magnetic Resonance Imaging (MRI) of Bilateral Lower Extremity Arteries

About the B43 Code Range

These MRI procedures create computer-displayed views of lower arteries using radio signals captured in a magnetic field. The images show the arteries from multiple directions.

The fourth character identifies the site: the abdominal aorta, celiac artery, superior mesenteric artery, both renal arteries, pelvic arteries, or lower extremity arteries on the right, left, or both sides. The fifth character records Other Contrast or None. The sixth records Unenhanced and Enhanced or None, and the seventh is always None.

MR angiography is an Index term for these procedures.

Questions About This Page

How many billable codes are in the B43 range?

Of the 25 codes in this range, 24 are billable and valid for inpatient claim submission from October 1, 2026 through September 30, 2027. Table header codes group them but cannot be reported on claims.

What does the B43 range classify?

The range classifies Magnetic Resonance Imaging (MRI) procedures, computer reformatted digital display of multiplanar images developed from the capture of radio frequency signals emitted by nuclei in a body site excited within a magnetic field, performed on the lower arteries. Each code adds the body part, approach, device, and qualifier in characters four through seven, and links to its own reference page.

Related References

All ICD-10-PCS SectionsAll of Imaging (B)All of Body System B4ICD-10-PCS Code LookupICD-10-CM Codes ListMS-DRG ReferenceMedicare Code Edits

Source: CMS FY 2027 ICD-10-PCS order file and code tables, effective October 1, 2026 through September 30, 2027.