ICD-10-PCS Table: Imaging - Fetus and Obstetrical - Ultrasonography

ICD-10-PCS Procedure Code Table (2025)

This page provides the details for ICD-10-PCS Table BY4: Imaging - Fetus and Obstetrical - Ultrasonography. Use the interactive builder below, review all possible character options, or browse the complete list of valid 7-character codes to construct an inpatient procedure code for the 2025 coding year.

Build Procedure Code for Table BY4:

Current Code: BY4????

All Possible Options for Characters in Table BY4:

Char 4: Character 4
  • 7 - Fetal Umbilical Cord
  • 8 - Placenta
  • 9 - First Trimester, Single Fetus
  • B - First Trimester, Multiple Gestation
  • C - Second Trimester, Single Fetus
  • D - Second Trimester, Multiple Gestation
  • F - Third Trimester, Single Fetus
  • G - Third Trimester, Multiple Gestation
Char 5: Character 5
  • Z - None
Char 6: Character 6
  • Z - None
Char 7: Character 7
  • Z - None

Complete List of Valid 7-Character Codes for Table BY4:

No valid code combinations found or detailed axis definitions are missing for this table.

Understanding ICD-10-PCS Table BY4 (Ultrasonography of Fetus and Obstetrical)

The ICD-10-PCS (Procedure Coding System) is utilized in U.S. healthcare settings for reporting inpatient hospital procedures. Table BY4 belongs to the Imaging section, specifically addressing procedures within the Fetus and Obstetrical body system, and focuses on the root operation of Ultrasonography.

A complete 7-character ICD-10-PCS code from this table is constructed as follows:

  • Character 1 (Section): B - Imaging
  • Character 2 (Body System): Y - Fetus and Obstetrical
  • Character 3 (Root Operation): 4 - Ultrasonography
  • Character 4 (Character 4): Specifies the exact body part involved in the ultrasonography.
  • Character 5 (Character 5): Defines the technique (e.g., Open, Percutaneous) used to reach the procedure site.
  • Character 6 (Character 6): Indicates if a device was used during the ultrasonography and its type.
  • Character 7 (Character 7): Provides additional specific information or clarifies the procedure.

Accurate assignment of each character based on the operative report and the detailed definitions within the ICD-10-PCS system is essential for correct coding. This page lists all valid options and combinations for table BY4 according to the 2025 ICD-10-PCS guidelines.