ICD-10-PCS Tabular Index · Section B · FY 2027 B02

B02 Computerized Tomography (CT Scan) - Central Nervous System ICD-10-PCS

The B02 code range contains 36 ICD-10-PCS codes for Computerized Tomography (CT Scan) procedures on the central nervous system. 35 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
36
Procedure Codes
35
Billable Codes
B02
Characters 1–3
B0
Parent Body System

Root Operation Definition

Computerized Tomography (CT Scan): Computer-reformatted digital display of multiplanar images developed from the capture of multiple exposures of external ionizing radiation.

ICD-10-PCS

Codes in the B02 Range 36 codes · 35 billable

36 of 36 shown
  • B02 Imaging, Central Nervous System, Computerized Tomography (CT Scan)Non-billable header
  • B02000Z Computerized Tomography (CT Scan) of Brain using High Osmolar Contrast, Unenhanced and Enhanced
  • B0200ZZ Computerized Tomography (CT Scan) of Brain using High Osmolar Contrast
  • B02010Z Computerized Tomography (CT Scan) of Brain using Low Osmolar Contrast, Unenhanced and Enhanced
  • B0201ZZ Computerized Tomography (CT Scan) of Brain using Low Osmolar Contrast
  • B020Y0Z Computerized Tomography (CT Scan) of Brain using Other Contrast, Unenhanced and Enhanced
  • B020YZZ Computerized Tomography (CT Scan) of Brain using Other Contrast
  • B020ZZZ Computerized Tomography (CT Scan) of Brain
  • B02700Z Computerized Tomography (CT Scan) of Cisterna using High Osmolar Contrast, Unenhanced and Enhanced
  • B0270ZZ Computerized Tomography (CT Scan) of Cisterna using High Osmolar Contrast
  • B02710Z Computerized Tomography (CT Scan) of Cisterna using Low Osmolar Contrast, Unenhanced and Enhanced
  • B0271ZZ Computerized Tomography (CT Scan) of Cisterna using Low Osmolar Contrast
  • B027Y0Z Computerized Tomography (CT Scan) of Cisterna using Other Contrast, Unenhanced and Enhanced
  • B027YZZ Computerized Tomography (CT Scan) of Cisterna using Other Contrast
  • B027ZZZ Computerized Tomography (CT Scan) of Cisterna
  • B02800Z Computerized Tomography (CT Scan) of Cerebral Ventricle(s) using High Osmolar Contrast, Unenhanced and Enhanced
  • B0280ZZ Computerized Tomography (CT Scan) of Cerebral Ventricle(s) using High Osmolar Contrast
  • B02810Z Computerized Tomography (CT Scan) of Cerebral Ventricle(s) using Low Osmolar Contrast, Unenhanced and Enhanced
  • B0281ZZ Computerized Tomography (CT Scan) of Cerebral Ventricle(s) using Low Osmolar Contrast
  • B028Y0Z Computerized Tomography (CT Scan) of Cerebral Ventricle(s) using Other Contrast, Unenhanced and Enhanced
  • B028YZZ Computerized Tomography (CT Scan) of Cerebral Ventricle(s) using Other Contrast
  • B028ZZZ Computerized Tomography (CT Scan) of Cerebral Ventricle(s)
  • B02900Z Computerized Tomography (CT Scan) of Sella Turcica/Pituitary Gland using High Osmolar Contrast, Unenhanced and Enhanced
  • B0290ZZ Computerized Tomography (CT Scan) of Sella Turcica/Pituitary Gland using High Osmolar Contrast
  • B02910Z Computerized Tomography (CT Scan) of Sella Turcica/Pituitary Gland using Low Osmolar Contrast, Unenhanced and Enhanced
  • B0291ZZ Computerized Tomography (CT Scan) of Sella Turcica/Pituitary Gland using Low Osmolar Contrast
  • B029Y0Z Computerized Tomography (CT Scan) of Sella Turcica/Pituitary Gland using Other Contrast, Unenhanced and Enhanced
  • B029YZZ Computerized Tomography (CT Scan) of Sella Turcica/Pituitary Gland using Other Contrast
  • B029ZZZ Computerized Tomography (CT Scan) of Sella Turcica/Pituitary Gland
  • B02B00Z Computerized Tomography (CT Scan) of Spinal Cord using High Osmolar Contrast, Unenhanced and Enhanced
  • B02B0ZZ Computerized Tomography (CT Scan) of Spinal Cord using High Osmolar Contrast
  • B02B10Z Computerized Tomography (CT Scan) of Spinal Cord using Low Osmolar Contrast, Unenhanced and Enhanced
  • B02B1ZZ Computerized Tomography (CT Scan) of Spinal Cord using Low Osmolar Contrast
  • B02BY0Z Computerized Tomography (CT Scan) of Spinal Cord using Other Contrast, Unenhanced and Enhanced
  • B02BYZZ Computerized Tomography (CT Scan) of Spinal Cord using Other Contrast
  • B02BZZZ Computerized Tomography (CT Scan) of Spinal Cord

About the B02 Code Range

These CT scans turn multiple external radiation exposures into computer-processed views of the central nervous system in different planes.

The fourth character identifies the scanned site: Brain, Cisterna, Cerebral Ventricle(s), Sella Turcica/Pituitary Gland, or Spinal Cord. The fifth records contrast as High Osmolar, Low Osmolar, Other Contrast, or None. The sixth is a qualifier that distinguishes Unenhanced and Enhanced from None. The seventh qualifier is always None.

Questions About This Page

How many billable codes are in the B02 range?

Of the 36 codes in this range, 35 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 B02 range classify?

The range classifies Computerized Tomography (CT Scan) procedures, computer-reformatted digital display of multiplanar images developed from the capture of multiple exposures of external ionizing radiation, performed on the central nervous system. 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 B0ICD-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.