BY31YZZMagnetic Resonance Imaging (MRI) of Fetal Heart using Other Contrast
- Billable / Specific Code
BY31YZZ is a billable ICD-10-PCS procedure code for Magnetic Resonance Imaging (MRI) of Fetal Heart using Other Contrast. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027). The root operation Magnetic Resonance Imaging (MRI) involves computer reformatted digital display of multiplanar images developed from the capture of radiofrequency signals emitted by nuclei in a body site excited within a magnetic field. In AHRQ's Clinical Classifications Software (CCSR), this procedure falls under Magnetic resonance imaging (MRI).
Code Identity
PCS Table Breakdown
Each ICD-10-PCS code is built from seven characters, each an axis of the procedure. Hover or tap the icons for the official CMS definitions.
| Position | Designation | Value | Meaning |
|---|---|---|---|
| 1 | Section | B | Imaging |
| 2 | Body System | Y | Fetus and Obstetrical |
| 3 | Type | 3 | Magnetic Resonance Imaging (MRI) |
| 4 | BodyPart | 1 | Fetal Heart |
| 5 | Contrast | Y | Other Contrast |
| 6 | Qualifier | Z | None |
| 7 | Qualifier | Z | None |
In the ICD-10-PCS Alphabetic Index
These FY 2027 ICD-10-PCS Alphabetic Index entries lead to this code:
Clinical Classification (CCSR)
AHRQ groups this procedure code into these clinical categories.
Convert to ICD-9-PCS
Closest ICD-9-PCS equivalents for this code under the General Equivalence Mappings.
Similar Procedure Codes
Questions About BY31YZZ
Is BY31YZZ a billable code?
Yes. This is a complete seven-character ICD-10-PCS code, specific enough to report Magnetic Resonance Imaging (MRI) of Fetal Heart using Other Contrast on inpatient claims from October 1, 2026 through September 30, 2027.
What do the characters in BY31YZZ mean?
The code breaks down character by character: the 1st character B is the Section (Imaging); the 2nd character Y is the Body System (Fetus and Obstetrical); the 3rd character 3 is the Type (Magnetic Resonance Imaging (MRI)); the 4th character 1 is the BodyPart (Fetal Heart); the 5th character Y is the Contrast (Other Contrast); the 6th character Z is the Qualifier (None); the 7th character Z is the Qualifier (None).
What is the ICD-9-PCS equivalent of BY31YZZ?
Under the General Equivalence Mappings, Magnetic Resonance Imaging (MRI) of Fetal Heart using Other Contrast crosswalks to ICD-9-PCS 88.97 (Magnetic resonance imaging of other and unspecified sites). The mapping is approximate, so confirm it fits the documentation.
