ICD-10-PCS Tabular Index · Section C · FY 2026 CW2

CW2 Tomographic (Tomo) Nuclear Medicine Imaging - Anatomical Regions ICD-10-PCS

The CW2 code range contains 74 ICD-10-PCS codes for Tomographic (Tomo) Nuclear Medicine Imaging procedures on the anatomical regions. 73 of the codes are billable and valid for inpatient claim submission in fiscal year 2026.

✓ Built from the official CMS FY 2026 datasetEffective Oct 1, 2025 – Sep 30, 2026
74
Procedure Codes
73
Billable Codes
CW2
Characters 1–3
CW
Parent Body System

Root Operation Definition

Tomographic (Tomo) Nuclear Medicine Imaging: Introduction of radioactive materials into the body for three dimensional display of images developed from the capture of radioactive emissions.

ICD-10-PCS

Codes in the CW2 Range 74 codes · 73 billable

74 of 74 shown
  • CW2 Nuclear Medicine, Anatomical Regions, Tomographic (Tomo) Nuclear Medicine ImagingNon-billable header
  • CW201ZZ Tomographic (Tomo) Nuclear Medicine Imaging of Abdomen using Technetium 99m (Tc-99m)
  • CW20DZZ Tomographic (Tomo) Nuclear Medicine Imaging of Abdomen using Indium 111 (In-111)
  • CW20FZZ Tomographic (Tomo) Nuclear Medicine Imaging of Abdomen using Iodine 123 (I-123)
  • CW20GZZ Tomographic (Tomo) Nuclear Medicine Imaging of Abdomen using Iodine 131 (I-131)
  • CW20KZZ Tomographic (Tomo) Nuclear Medicine Imaging of Abdomen using Fluorine 18 (F-18)
  • CW20LZZ Tomographic (Tomo) Nuclear Medicine Imaging of Abdomen using Gallium 67 (Ga-67)
  • CW20SZZ Tomographic (Tomo) Nuclear Medicine Imaging of Abdomen using Thallium 201 (Tl-201)
  • CW20YZZ Tomographic (Tomo) Nuclear Medicine Imaging of Abdomen using Other Radionuclide
  • CW211ZZ Tomographic (Tomo) Nuclear Medicine Imaging of Abdomen and Pelvis using Technetium 99m (Tc-99m)
  • CW21DZZ Tomographic (Tomo) Nuclear Medicine Imaging of Abdomen and Pelvis using Indium 111 (In-111)
  • CW21FZZ Tomographic (Tomo) Nuclear Medicine Imaging of Abdomen and Pelvis using Iodine 123 (I-123)
  • CW21GZZ Tomographic (Tomo) Nuclear Medicine Imaging of Abdomen and Pelvis using Iodine 131 (I-131)
  • CW21KZZ Tomographic (Tomo) Nuclear Medicine Imaging of Abdomen and Pelvis using Fluorine 18 (F-18)
  • CW21LZZ Tomographic (Tomo) Nuclear Medicine Imaging of Abdomen and Pelvis using Gallium 67 (Ga-67)
  • CW21SZZ Tomographic (Tomo) Nuclear Medicine Imaging of Abdomen and Pelvis using Thallium 201 (Tl-201)
  • CW21YZZ Tomographic (Tomo) Nuclear Medicine Imaging of Abdomen and Pelvis using Other Radionuclide
  • CW231ZZ Tomographic (Tomo) Nuclear Medicine Imaging of Chest using Technetium 99m (Tc-99m)
  • CW23DZZ Tomographic (Tomo) Nuclear Medicine Imaging of Chest using Indium 111 (In-111)
  • CW23FZZ Tomographic (Tomo) Nuclear Medicine Imaging of Chest using Iodine 123 (I-123)
  • CW23GZZ Tomographic (Tomo) Nuclear Medicine Imaging of Chest using Iodine 131 (I-131)
  • CW23KZZ Tomographic (Tomo) Nuclear Medicine Imaging of Chest using Fluorine 18 (F-18)
  • CW23LZZ Tomographic (Tomo) Nuclear Medicine Imaging of Chest using Gallium 67 (Ga-67)
  • CW23SZZ Tomographic (Tomo) Nuclear Medicine Imaging of Chest using Thallium 201 (Tl-201)
  • CW23YZZ Tomographic (Tomo) Nuclear Medicine Imaging of Chest using Other Radionuclide
  • CW241ZZ Tomographic (Tomo) Nuclear Medicine Imaging of Chest and Abdomen using Technetium 99m (Tc-99m)
  • CW24DZZ Tomographic (Tomo) Nuclear Medicine Imaging of Chest and Abdomen using Indium 111 (In-111)
  • CW24FZZ Tomographic (Tomo) Nuclear Medicine Imaging of Chest and Abdomen using Iodine 123 (I-123)
  • CW24GZZ Tomographic (Tomo) Nuclear Medicine Imaging of Chest and Abdomen using Iodine 131 (I-131)
  • CW24KZZ Tomographic (Tomo) Nuclear Medicine Imaging of Chest and Abdomen using Fluorine 18 (F-18)
  • CW24LZZ Tomographic (Tomo) Nuclear Medicine Imaging of Chest and Abdomen using Gallium 67 (Ga-67)
  • CW24SZZ Tomographic (Tomo) Nuclear Medicine Imaging of Chest and Abdomen using Thallium 201 (Tl-201)
  • CW24YZZ Tomographic (Tomo) Nuclear Medicine Imaging of Chest and Abdomen using Other Radionuclide
  • CW261ZZ Tomographic (Tomo) Nuclear Medicine Imaging of Chest and Neck using Technetium 99m (Tc-99m)
  • CW26DZZ Tomographic (Tomo) Nuclear Medicine Imaging of Chest and Neck using Indium 111 (In-111)
  • CW26FZZ Tomographic (Tomo) Nuclear Medicine Imaging of Chest and Neck using Iodine 123 (I-123)
  • CW26GZZ Tomographic (Tomo) Nuclear Medicine Imaging of Chest and Neck using Iodine 131 (I-131)
  • CW26KZZ Tomographic (Tomo) Nuclear Medicine Imaging of Chest and Neck using Fluorine 18 (F-18)
  • CW26LZZ Tomographic (Tomo) Nuclear Medicine Imaging of Chest and Neck using Gallium 67 (Ga-67)
  • CW26SZZ Tomographic (Tomo) Nuclear Medicine Imaging of Chest and Neck using Thallium 201 (Tl-201)
  • CW26YZZ Tomographic (Tomo) Nuclear Medicine Imaging of Chest and Neck using Other Radionuclide
  • CW2B1ZZ Tomographic (Tomo) Nuclear Medicine Imaging of Head and Neck using Technetium 99m (Tc-99m)
  • CW2BDZZ Tomographic (Tomo) Nuclear Medicine Imaging of Head and Neck using Indium 111 (In-111)
  • CW2BFZZ Tomographic (Tomo) Nuclear Medicine Imaging of Head and Neck using Iodine 123 (I-123)
  • CW2BGZZ Tomographic (Tomo) Nuclear Medicine Imaging of Head and Neck using Iodine 131 (I-131)
  • CW2BKZZ Tomographic (Tomo) Nuclear Medicine Imaging of Head and Neck using Fluorine 18 (F-18)
  • CW2BLZZ Tomographic (Tomo) Nuclear Medicine Imaging of Head and Neck using Gallium 67 (Ga-67)
  • CW2BSZZ Tomographic (Tomo) Nuclear Medicine Imaging of Head and Neck using Thallium 201 (Tl-201)
  • CW2BYZZ Tomographic (Tomo) Nuclear Medicine Imaging of Head and Neck using Other Radionuclide
  • CW2D1ZZ Tomographic (Tomo) Nuclear Medicine Imaging of Lower Extremity using Technetium 99m (Tc-99m)
  • CW2DDZZ Tomographic (Tomo) Nuclear Medicine Imaging of Lower Extremity using Indium 111 (In-111)
  • CW2DFZZ Tomographic (Tomo) Nuclear Medicine Imaging of Lower Extremity using Iodine 123 (I-123)
  • CW2DGZZ Tomographic (Tomo) Nuclear Medicine Imaging of Lower Extremity using Iodine 131 (I-131)
  • CW2DKZZ Tomographic (Tomo) Nuclear Medicine Imaging of Lower Extremity using Fluorine 18 (F-18)
  • CW2DLZZ Tomographic (Tomo) Nuclear Medicine Imaging of Lower Extremity using Gallium 67 (Ga-67)
  • CW2DSZZ Tomographic (Tomo) Nuclear Medicine Imaging of Lower Extremity using Thallium 201 (Tl-201)
  • CW2DYZZ Tomographic (Tomo) Nuclear Medicine Imaging of Lower Extremity using Other Radionuclide
  • CW2J1ZZ Tomographic (Tomo) Nuclear Medicine Imaging of Pelvic Region using Technetium 99m (Tc-99m)
  • CW2JDZZ Tomographic (Tomo) Nuclear Medicine Imaging of Pelvic Region using Indium 111 (In-111)
  • CW2JFZZ Tomographic (Tomo) Nuclear Medicine Imaging of Pelvic Region using Iodine 123 (I-123)
  • CW2JGZZ Tomographic (Tomo) Nuclear Medicine Imaging of Pelvic Region using Iodine 131 (I-131)
  • CW2JKZZ Tomographic (Tomo) Nuclear Medicine Imaging of Pelvic Region using Fluorine 18 (F-18)
  • CW2JLZZ Tomographic (Tomo) Nuclear Medicine Imaging of Pelvic Region using Gallium 67 (Ga-67)
  • CW2JSZZ Tomographic (Tomo) Nuclear Medicine Imaging of Pelvic Region using Thallium 201 (Tl-201)
  • CW2JYZZ Tomographic (Tomo) Nuclear Medicine Imaging of Pelvic Region using Other Radionuclide
  • CW2M1ZZ Tomographic (Tomo) Nuclear Medicine Imaging of Upper Extremity using Technetium 99m (Tc-99m)
  • CW2MDZZ Tomographic (Tomo) Nuclear Medicine Imaging of Upper Extremity using Indium 111 (In-111)
  • CW2MFZZ Tomographic (Tomo) Nuclear Medicine Imaging of Upper Extremity using Iodine 123 (I-123)
  • CW2MGZZ Tomographic (Tomo) Nuclear Medicine Imaging of Upper Extremity using Iodine 131 (I-131)
  • CW2MKZZ Tomographic (Tomo) Nuclear Medicine Imaging of Upper Extremity using Fluorine 18 (F-18)
  • CW2MLZZ Tomographic (Tomo) Nuclear Medicine Imaging of Upper Extremity using Gallium 67 (Ga-67)
  • CW2MSZZ Tomographic (Tomo) Nuclear Medicine Imaging of Upper Extremity using Thallium 201 (Tl-201)
  • CW2MYZZ Tomographic (Tomo) Nuclear Medicine Imaging of Upper Extremity using Other Radionuclide
  • CW2YYZZ Tomographic (Tomo) Nuclear Medicine Imaging of Multiple Anatomical Regions using Other Radionuclide

About the CW2 Code Range

The ICD-10-PCS root operation Tomographic (Tomo) Nuclear Medicine Imaging (code CW2) involves creating detailed sectional images of anatomical regions using nuclear medicine techniques. This procedure is classified within the Nuclear Medicine body system and focuses on generating tomographic scans with radiopharmaceuticals.

This operation is used to image various body parts such as the Abdomen, Chest, Head and Neck, Pelvic Region, and both Upper and Lower Extremities. Each code specifies the anatomical region and the radionuclide used, for example, CW201ZZ designates tomographic imaging of the abdomen with Technetium 99m (Tc-99m), while CW23KZZ refers to chest imaging with Fluorine 18 (F-18). These detailed codes enable precise documentation of the imaging procedure conducted. Utilizing the correct ICD-10-PCS Tomographic Nuclear Medicine Imaging codes ensures accurate capture of the imaging modality, anatomical focus, and radionuclide involved for diagnostic and billing purposes.

Questions About This Page

How many billable codes are in the CW2 range?

Of the 74 codes in this range, 73 are billable and valid for inpatient claim submission from October 1, 2025 through September 30, 2026. Table header codes group them but cannot be reported on claims.

What does the CW2 range classify?

The range classifies Tomographic (Tomo) Nuclear Medicine Imaging procedures, introduction of radioactive materials into the body for three dimensional display of images developed from the capture of radioactive emissions, performed on the anatomical regions. 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 Nuclear Medicine (C)All of Body System CWICD-10-PCS Code LookupICD-10-CM Codes ListMS-DRG ReferenceMedicare Code Edits

Source: CMS FY 2026 ICD-10-PCS order file and code tables, effective October 1, 2025 through September 30, 2026.