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Inpatient Procedure Code

4A0C4BZ ICD-10-PCS Code: Measurement of Biliary Pressure, Percutaneous Endoscopic Approach

Measurement of Biliary Pressure, Perc Endo Approach

Axis Breakdown

Every ICD-10-PCS code is exactly seven characters, one per axis. Each character's meaning is defined by its position in the code.

PositionValueMeaning
1
Section4

Measurement and Monitoring

2
Body SystemA

Physiological Systems

3
Root Operation0

Measurement

Determining the level of a physiological or physical function at a point in time

4
Body SystemC

Biliary

5
Approach4

Percutaneous Endoscopic

6
Function / DeviceB

Pressure

7
QualifierZ

No Qualifier

MS-DRG Grouper Relationships (FY2026)

Potential MS-DRG participation — not a DRG assignment.

The MS-DRG grouper treats this as an operating room procedure. It appears in the surgical logic of 6 MS-DRGs:

From the CMS MS-DRG Definitions Manual, Appendix E. Actual DRG assignment depends on the complete claim.

Related Codes

Same operation — other Approach

Same table and root operation, differing only in the approach character.

4A0C3BZ — Measurement of Biliary Pressure, Percutaneous Approach, 4A0C7BZ — Measurement of Biliary Pressure, Via Natural or Artificial Opening, 4A0C8BZ — Measurement of Biliary Pressure, Via Natural or Artificial Opening Endoscopic

Same operation — other Function / Device

Same table and root operation, differing only in the function / device character.

4A0C45Z — Measurement of Biliary Flow, Percutaneous Endoscopic Approach

Same procedure category (CCSR), other tables

AHRQ's Clinical Classifications Software Refined groups these ICD-10-PCS procedures with this one under Measurement and monitoring, NEC (Measurement and Monitoring); listed here are the members in other PCS tables. Source: Clinical Classifications Software Refined (CCSR), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, November 2025.

4A1605H — Monitoring of Lymphatic Flow using Indocyanine Green Dye, Open Approach, 4A1605Z — Monitoring of Lymphatic Flow, Open Approach, 4A160BZ — Monitoring of Lymphatic Pressure, Open Approach, 4A1635H — Monitoring of Lymphatic Flow using Indocyanine Green Dye, Percutaneous Approach, 4A1635Z — Monitoring of Lymphatic Flow, Percutaneous Approach, 4A163BZ — Monitoring of Lymphatic Pressure, Percutaneous Approach, 4A1675H — Monitoring of Lymphatic Flow using Indocyanine Green Dye, Via Natural or Artificial Opening, 4A1675Z — Monitoring of Lymphatic Flow, Via Natural or Artificial Opening, 4A167BZ — Monitoring of Lymphatic Pressure, Via Natural or Artificial Opening, 4A1685H — Monitoring of Lymphatic Flow using Indocyanine Green Dye, Via Natural or Artificial Opening Endoscopic, 4A1685Z — Monitoring of Lymphatic Flow, Via Natural or Artificial Opening Endoscopic, 4A168BZ — Monitoring of Lymphatic Pressure, Via Natural or Artificial Opening Endoscopic, 4A1B78Z — Monitoring of Gastrointestinal Motility, Via Natural or Artificial Opening, 4A1B7BZ — Monitoring of Gastrointestinal Pressure, Via Natural or Artificial Opening, 4A1B7GZ — Monitoring of Gastrointestinal Secretion, Via Natural or Artificial Opening, 4A1B88Z — Monitoring of Gastrointestinal Motility, Via Natural or Artificial Opening Endoscopic, 4A1B8BZ — Monitoring of Gastrointestinal Pressure, Via Natural or Artificial Opening Endoscopic, 4A1B8GZ — Monitoring of Gastrointestinal Secretion, Via Natural or Artificial Opening Endoscopic, 4A1BXSH — Monitoring of Gastrointestinal Vascular Perfusion using Indocyanine Green Dye, External Approach, 4A1D73Z — Monitoring of Urinary Contractility, Via Natural or Artificial Opening, +34 more

Contextual Map

Every relationship of 4A0C4BZ in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.

Run 4A0C4BZ with these 5 related codes in Claim Check

PCS table

MS-DRG participation

Clinical classification (CCSR)

MDC crossing · diagnoses (1493)

  • MDC 06 — Diseases and Disorders of the Digestive System[MDC crossing]: “Diseases and Disorders of the Digestive System — the grouper's crossing between diagnoses and procedures: a principal diagnosis sets the MDC, and same-MDC procedures move the stay to its surgical DRGs.”— CMS MS-DRG Definitions Manual · FY2026
  • MDC 07 — Diseases and Disorders of the Hepatobiliary System and Pancreas[MDC crossing]: “Diseases and Disorders of the Hepatobiliary System and Pancreas — the grouper's crossing between diagnoses and procedures: a principal diagnosis sets the MDC, and same-MDC procedures move the stay to its surgical DRGs.”— CMS MS-DRG Definitions Manual · FY2026
  • A00.0 — Cholera due to Vibrio cholerae 01, biovar cholerae[Same-MDC diagnosis]: “Cholera due to Vibrio cholerae 01, biovar cholerae — grouped in MDC 06, the diagnosis side of this code's crossing.”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
  • A00.1 — Cholera due to Vibrio cholerae 01, biovar eltor[Same-MDC diagnosis]: “Cholera due to Vibrio cholerae 01, biovar eltor — grouped in MDC 06, the diagnosis side of this code's crossing.”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
  • A00.9 — Cholera, unspecified[Same-MDC diagnosis]: “Cholera, unspecified — grouped in MDC 06, the diagnosis side of this code's crossing.”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
  • A02.0 — Salmonella enteritis[Same-MDC diagnosis]: “Salmonella enteritis — grouped in MDC 06, the diagnosis side of this code's crossing.”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
  • A03.0 — Shigellosis due to Shigella dysenteriae[Same-MDC diagnosis]: “Shigellosis due to Shigella dysenteriae — grouped in MDC 06, the diagnosis side of this code's crossing.”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
  • and 1488 more

Nearest codes

Change history

No changes recorded for this code. This ledger tracks additions, deletions and description changes from FY2026 (April) onward. Note changes are not tracked.

Read from: CMS ICD-10-PCS code tables, index and definitions — FY2026 (April); CMS MS-DRG Definitions Manual (incl. Appendix B diagnosis index, Appendix C CC/MCC list, Appendix E procedure index) and IPPS Final Rule tables — v43; AHRQ HCUP Clinical Classifications Software Refined for ICD-10-PCS Procedures (hcup-us.ahrq.gov/toolssoftware/ccsr/PRCCSR_v2026-1.zip) — v2026.1. All data sources · How to read the labels