00NP4ZZ ICD-10-PCS Code: Release Glossopharyngeal Nerve, Percutaneous Endoscopic Approach

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 12 MS-DRGs:

• MDC 01 — Peripheral, Cranial Nerve and Other Nervous System Procedures: DRG 040, DRG 041, DRG 042
• MDC 03 — Other Ear, Nose, Mouth and Throat O.R. Procedures: DRG 143, DRG 144, DRG 145
• MDC 21 — Other O.R. Procedures for Injuries: DRG 907, DRG 908, DRG 909
• MDC 24 — Other O.R. Procedures for Multiple Significant Trauma: DRG 957, DRG 958, DRG 959

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

Related Codes

Same operation — other Body Part

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

00NK4ZZ — Release Trigeminal Nerve, Percutaneous Endoscopic Approach, 00NL4ZZ — Release Abducens Nerve, Percutaneous Endoscopic Approach, 00NM4ZZ — Release Facial Nerve, Percutaneous Endoscopic Approach, 00NN4ZZ — Release Acoustic Nerve, Percutaneous Endoscopic Approach, 00NQ4ZZ — Release Vagus Nerve, Percutaneous Endoscopic Approach, 00NR4ZZ — Release Accessory Nerve, Percutaneous Endoscopic Approach, 00NS4ZZ — Release Hypoglossal Nerve, Percutaneous Endoscopic Approach, 00NT4ZZ — Release Spinal Meninges, Percutaneous Endoscopic Approach, +18 more

Same operation — other Approach

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

00NP0ZZ — Release Glossopharyngeal Nerve, Open Approach, 00NP3ZZ — Release Glossopharyngeal Nerve, Percutaneous Approach

Same procedure category (CCSR), other tables

AHRQ's Clinical Classifications Software Refined groups these ICD-10-PCS procedures with this one under CNS procedures, NEC (Central Nervous System Procedures); 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.

00HU3YZ — Insertion of Other Device into Spinal Canal, Percutaneous Approach, 00HU42Z — Insertion of Monitoring Device into Spinal Canal, Percutaneous Endoscopic Approach, 00HU4YZ — Insertion of Other Device into Spinal Canal, Percutaneous Endoscopic Approach, 00HV02Z — Insertion of Monitoring Device into Spinal Cord, Open Approach, 00HV0YZ — Insertion of Other Device into Spinal Cord, Open Approach, 00HV32Z — Insertion of Monitoring Device into Spinal Cord, Percutaneous Approach, 00HV3YZ — Insertion of Other Device into Spinal Cord, Percutaneous Approach, 00HV42Z — Insertion of Monitoring Device into Spinal Cord, Percutaneous Endoscopic Approach, 00HV4YZ — Insertion of Other Device into Spinal Cord, Percutaneous Endoscopic Approach, 00K0XZ1 — Map Brain using Connectomic Analysis, External Approach, 00P002Z — Removal of Monitoring Device from Brain, Open Approach, 00P003Z — Removal of Infusion Device from Brain, Open Approach, 00P007Z — Removal of Autologous Tissue Substitute from Brain, Open Approach, 00P00JZ — Removal of Synthetic Substitute from Brain, Open Approach, 00P00KZ — Removal of Nonautologous Tissue Substitute from Brain, Open Approach, 00P00YZ — Removal of Other Device from Brain, Open Approach, 00P032Z — Removal of Monitoring Device from Brain, Percutaneous Approach, 00P033Z — Removal of Infusion Device from Brain, Percutaneous Approach, 00P037Z — Removal of Autologous Tissue Substitute from Brain, Percutaneous Approach, 00P03JZ — Removal of Synthetic Substitute from Brain, Percutaneous Approach, +613 more

Contextual Map

Every relationship of 00NP4ZZ 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 00NP4ZZ with these 5 related codes in Claim Check

PCS table

• 00N[PCS table]— CMS ICD-10-PCS tables
• Medical and Surgical — Section: Medical and Surgical[Section]: “Medical and Surgical”— CMS ICD-10-PCS tables
• Central Nervous System and Cranial Nerves — Body System: Central Nervous System and Cranial Nerves[Body System]: “Central Nervous System and Cranial Nerves”— CMS ICD-10-PCS tables
• Release — Operation: Release[Operation]: “Release”— CMS ICD-10-PCS tables

MS-DRG participation (12)

• DRG 040 — PERIPHERAL, CRANIAL NERVE AND OTHER NERVOUS SYSTEM PROCEDURES WITH MCC[MS-DRG]: “PERIPHERAL, CRANIAL NERVE AND OTHER NERVOUS SYSTEM PROCEDURES WITH MCC — Peripheral, Cranial Nerve and Other Nervous System Procedures (MDC 01)”— CMS MS-DRG Definitions Manual (Appendix E) · FY2026
• DRG 041 — PERIPHERAL, CRANIAL NERVE AND OTHER NERVOUS SYSTEM PROCEDURES WITH CC OR PERIPHERAL NEUROSTIMULATOR[MS-DRG]: “PERIPHERAL, CRANIAL NERVE AND OTHER NERVOUS SYSTEM PROCEDURES WITH CC OR PERIPHERAL NEUROSTIMULATOR — Peripheral, Cranial Nerve and Other Nervous System Procedures (MDC 01)”— CMS MS-DRG Definitions Manual (Appendix E) · FY2026
• DRG 042 — PERIPHERAL, CRANIAL NERVE AND OTHER NERVOUS SYSTEM PROCEDURES WITHOUT CC/MCC[MS-DRG]: “PERIPHERAL, CRANIAL NERVE AND OTHER NERVOUS SYSTEM PROCEDURES WITHOUT CC/MCC — Peripheral, Cranial Nerve and Other Nervous System Procedures (MDC 01)”— CMS MS-DRG Definitions Manual (Appendix E) · FY2026
• DRG 143 — OTHER EAR, NOSE, MOUTH AND THROAT O.R. PROCEDURES WITH MCC[MS-DRG]: “OTHER EAR, NOSE, MOUTH AND THROAT O.R. PROCEDURES WITH MCC — Other Ear, Nose, Mouth and Throat O.R. Procedures (MDC 03)”— CMS MS-DRG Definitions Manual (Appendix E) · FY2026
• DRG 144 — OTHER EAR, NOSE, MOUTH AND THROAT O.R. PROCEDURES WITH CC[MS-DRG]: “OTHER EAR, NOSE, MOUTH AND THROAT O.R. PROCEDURES WITH CC — Other Ear, Nose, Mouth and Throat O.R. Procedures (MDC 03)”— CMS MS-DRG Definitions Manual (Appendix E) · FY2026
• DRG 145 — OTHER EAR, NOSE, MOUTH AND THROAT O.R. PROCEDURES WITHOUT CC/MCC[MS-DRG]: “OTHER EAR, NOSE, MOUTH AND THROAT O.R. PROCEDURES WITHOUT CC/MCC — Other Ear, Nose, Mouth and Throat O.R. Procedures (MDC 03)”— CMS MS-DRG Definitions Manual (Appendix E) · FY2026
• DRG 907 — OTHER O.R. PROCEDURES FOR INJURIES WITH MCC[MS-DRG]: “OTHER O.R. PROCEDURES FOR INJURIES WITH MCC — Other O.R. Procedures for Injuries (MDC 21)”— CMS MS-DRG Definitions Manual (Appendix E) · FY2026
• DRG 908 — OTHER O.R. PROCEDURES FOR INJURIES WITH CC[MS-DRG]: “OTHER O.R. PROCEDURES FOR INJURIES WITH CC — Other O.R. Procedures for Injuries (MDC 21)”— CMS MS-DRG Definitions Manual (Appendix E) · FY2026
• and 4 more

Clinical classification (CCSR)

• CNS014 — CNS procedures, NEC[CCSR category]: “CNS procedures, NEC — Central Nervous System Procedures”— AHRQ CCSR for ICD-10-PCS Procedures (HCUP) · v2026.1

MDC crossing · diagnoses (10474)

• MDC 01 — Diseases and Disorders of the Nervous System[MDC crossing]: “Diseases and Disorders of the Nervous 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 03 — Diseases and Disorders of the Ear, Nose, Mouth and Throat[MDC crossing]: “Diseases and Disorders of the Ear, Nose, Mouth and Throat — 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
• A02.21 — Salmonella meningitis[Same-MDC diagnosis]: “Salmonella meningitis — grouped in MDC 01, the diagnosis side of this code's crossing.”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
• A06.6 — Amebic brain abscess[Same-MDC diagnosis]: “Amebic brain abscess — grouped in MDC 01, the diagnosis side of this code's crossing.”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
• A17.0 — Tuberculous meningitis[Same-MDC diagnosis]: “Tuberculous meningitis — grouped in MDC 01, the diagnosis side of this code's crossing.”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
• A17.1 — Meningeal tuberculoma[Same-MDC diagnosis]: “Meningeal tuberculoma — grouped in MDC 01, the diagnosis side of this code's crossing.”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
• A17.81 — Tuberculoma of brain and spinal cord[Same-MDC diagnosis]: “Tuberculoma of brain and spinal cord — grouped in MDC 01, the diagnosis side of this code's crossing.”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
• and 10469 more

Nearest codes

• 00N04ZZ — Release Brain, Percutaneous Endoscopic Approach[One axis away]— CMS ICD-10-PCS tables
• 00N14ZZ — Release Cerebral Meninges, Percutaneous Endoscopic Approach[One axis away]— CMS ICD-10-PCS tables
• 00N24ZZ — Release Dura Mater, Percutaneous Endoscopic Approach[One axis away]— CMS ICD-10-PCS tables
• 00N64ZZ — Release Cerebral Ventricle, Percutaneous Endoscopic Approach[One axis away]— CMS ICD-10-PCS tables
• 00N74ZZ — Release Cerebral Hemisphere, Percutaneous Endoscopic Approach[One axis away]— CMS ICD-10-PCS tables
• 00N84ZZ — Release Basal Ganglia, Percutaneous Endoscopic Approach[One axis away]— CMS ICD-10-PCS tables
• 00N94ZZ — Release Thalamus, Percutaneous Endoscopic Approach[One axis away]— CMS ICD-10-PCS tables
• 00NA4ZZ — Release Hypothalamus, Percutaneous Endoscopic Approach[One axis away]— CMS ICD-10-PCS tables