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ICD-10-PCS 2027 procedure code

01JY4ZZInspection of Peripheral Nerve, Percutaneous Endoscopic Approach

✓ Valid for 2027O.R. procedure

Short description: Inspection of Peripheral Nerve, Perc Endo Approach

Code unchanged since ICD-10-PCS took effect on October 1, 2015. Source: official FY2027 ICD-10-PCS release from CMS. Page updated September 29, 2026. About our data

About 01JY4ZZ

01JY4ZZ is the ICD-10-PCS code for a inspection procedure on the peripheral nerve using a percutaneous endoscopic approach. In ICD-10-PCS, inspection means visually and/or manually exploring a body part.

In plain terms, this corresponds to other diagnostic procedures on cranial and peripheral nerves and ganglia and other diagnostic procedures on sympathetic nerves or ganglia, the ICD-9-CM procedure titles it maps to (04.19 and 05.19).

The same procedure with a different approach is coded 01JY0ZZ (open) and 01JY3ZZ (percutaneous).

It is an operating-room procedure in the MS-DRG logic for DRG 040 (Peripheral, Cranial Nerve and Other Nervous System Procedures with MCC), DRG 041 (Peripheral, Cranial Nerve and Other Nervous System Procedures with CC or Peripheral Neurostimulator) and DRG 042 (Peripheral, Cranial Nerve and Other Nervous System Procedures without CC/MCC), under the surgical category “Peripheral, Cranial Nerve and Other Nervous System Procedures”.

It has been valid since ICD-10-PCS took effect on October 1, 2015.

What each character means

1. Section
0Medical and Surgical
2. Body System
1Peripheral Nervous System
3. Operation
JInspection

Visually and/or manually exploring a body part

Visual exploration may be performed with or without optical instrumentation. Manual exploration may be performed directly or through intervening body layers

Includes: Diagnostic arthroscopy, exploratory laparotomy

4. Body Part
YPeripheral Nerve
5. Approach
4Percutaneous Endoscopic

Entry, by puncture or minor incision, of instrumentation through the skin or mucous membrane and any other body layers necessary to reach and visualize the site of the procedure

6. Device
ZNo Device
7. Qualifier
ZNo Qualifier

Other versions of this procedure

MS-DRG v44.0 grouping

All DRGs →

Surgical MS-DRGs this procedure can group to, depending on the principal diagnosis's MDC.

ICD-9-CM equivalent

Converter →
  • 04.19Other diagnostic procedures on cranial and peripheral nerves and gangliaapproximate
  • 05.19Other diagnostic procedures on sympathetic nerves or gangliaapproximate

From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about 01JY4ZZ

Is 01JY4ZZ a valid ICD-10-PCS code for 2027?

Yes. 01JY4ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 01JY4ZZ an O.R. procedure?

Yes. 01JY4ZZ is an O.R. procedure in MS-DRG v44.0.

What DRG does 01JY4ZZ group to?

Depending on the principal diagnosis, 01JY4ZZ can group to MS-DRG 040, MS-DRG 041 and MS-DRG 042.

What is the ICD-9 procedure code for 01JY4ZZ?

The CMS GEMs map 01JY4ZZ to ICD-9-CM 04.19 (Other diagnostic procedures on cranial and peripheral nerves and ganglia) and 05.19 (Other diagnostic procedures on sympathetic nerves or ganglia).