01N Release - Peripheral Nervous System ICD-10-PCS
The 01N code range contains 70 ICD-10-PCS codes for Release procedures on the peripheral nervous system. 69 of the codes are billable and valid for inpatient claim submission in fiscal year 2026.
Root Operation Definition
Release: Freeing a body part from an abnormal physical constraint by cutting or by use of force.
Codes in the 01N Range 70 codes · 69 billable
- 01N Peripheral Nervous System, ReleaseNon-billable header
- 01N00ZZ Release Cervical Plexus, Open Approach
- 01N03ZZ Release Cervical Plexus, Percutaneous Approach
- 01N04ZZ Release Cervical Plexus, Percutaneous Endoscopic Approach
- 01N10ZZ Release Cervical Nerve, Open Approach
- 01N13ZZ Release Cervical Nerve, Percutaneous Approach
- 01N14ZZ Release Cervical Nerve, Percutaneous Endoscopic Approach
- 01N20ZZ Release Phrenic Nerve, Open Approach
- 01N23ZZ Release Phrenic Nerve, Percutaneous Approach
- 01N24ZZ Release Phrenic Nerve, Percutaneous Endoscopic Approach
- 01N30ZZ Release Brachial Plexus, Open Approach
- 01N33ZZ Release Brachial Plexus, Percutaneous Approach
- 01N34ZZ Release Brachial Plexus, Percutaneous Endoscopic Approach
- 01N40ZZ Release Ulnar Nerve, Open Approach
- 01N43ZZ Release Ulnar Nerve, Percutaneous Approach
- 01N44ZZ Release Ulnar Nerve, Percutaneous Endoscopic Approach
- 01N50ZZ Release Median Nerve, Open Approach
- 01N53ZZ Release Median Nerve, Percutaneous Approach
- 01N54ZZ Release Median Nerve, Percutaneous Endoscopic Approach
- 01N60ZZ Release Radial Nerve, Open Approach
- 01N63ZZ Release Radial Nerve, Percutaneous Approach
- 01N64ZZ Release Radial Nerve, Percutaneous Endoscopic Approach
- 01N80ZZ Release Thoracic Nerve, Open Approach
- 01N83ZZ Release Thoracic Nerve, Percutaneous Approach
- 01N84ZZ Release Thoracic Nerve, Percutaneous Endoscopic Approach
- 01N90ZZ Release Lumbar Plexus, Open Approach
- 01N93ZZ Release Lumbar Plexus, Percutaneous Approach
- 01N94ZZ Release Lumbar Plexus, Percutaneous Endoscopic Approach
- 01NA0ZZ Release Lumbosacral Plexus, Open Approach
- 01NA3ZZ Release Lumbosacral Plexus, Percutaneous Approach
- 01NA4ZZ Release Lumbosacral Plexus, Percutaneous Endoscopic Approach
- 01NB0ZZ Release Lumbar Nerve, Open Approach
- 01NB3ZZ Release Lumbar Nerve, Percutaneous Approach
- 01NB4ZZ Release Lumbar Nerve, Percutaneous Endoscopic Approach
- 01NC0ZZ Release Pudendal Nerve, Open Approach
- 01NC3ZZ Release Pudendal Nerve, Percutaneous Approach
- 01NC4ZZ Release Pudendal Nerve, Percutaneous Endoscopic Approach
- 01ND0ZZ Release Femoral Nerve, Open Approach
- 01ND3ZZ Release Femoral Nerve, Percutaneous Approach
- 01ND4ZZ Release Femoral Nerve, Percutaneous Endoscopic Approach
- 01NF0ZZ Release Sciatic Nerve, Open Approach
- 01NF3ZZ Release Sciatic Nerve, Percutaneous Approach
- 01NF4ZZ Release Sciatic Nerve, Percutaneous Endoscopic Approach
- 01NG0ZZ Release Tibial Nerve, Open Approach
- 01NG3ZZ Release Tibial Nerve, Percutaneous Approach
- 01NG4ZZ Release Tibial Nerve, Percutaneous Endoscopic Approach
- 01NH0ZZ Release Peroneal Nerve, Open Approach
- 01NH3ZZ Release Peroneal Nerve, Percutaneous Approach
- 01NH4ZZ Release Peroneal Nerve, Percutaneous Endoscopic Approach
- 01NK0ZZ Release Head and Neck Sympathetic Nerve, Open Approach
- 01NK3ZZ Release Head and Neck Sympathetic Nerve, Percutaneous Approach
- 01NK4ZZ Release Head and Neck Sympathetic Nerve, Percutaneous Endoscopic Approach
- 01NL0ZZ Release Thoracic Sympathetic Nerve, Open Approach
- 01NL3ZZ Release Thoracic Sympathetic Nerve, Percutaneous Approach
- 01NL4ZZ Release Thoracic Sympathetic Nerve, Percutaneous Endoscopic Approach
- 01NM0ZZ Release Abdominal Sympathetic Nerve, Open Approach
- 01NM3ZZ Release Abdominal Sympathetic Nerve, Percutaneous Approach
- 01NM4ZZ Release Abdominal Sympathetic Nerve, Percutaneous Endoscopic Approach
- 01NN0ZZ Release Lumbar Sympathetic Nerve, Open Approach
- 01NN3ZZ Release Lumbar Sympathetic Nerve, Percutaneous Approach
- 01NN4ZZ Release Lumbar Sympathetic Nerve, Percutaneous Endoscopic Approach
- 01NP0ZZ Release Sacral Sympathetic Nerve, Open Approach
- 01NP3ZZ Release Sacral Sympathetic Nerve, Percutaneous Approach
- 01NP4ZZ Release Sacral Sympathetic Nerve, Percutaneous Endoscopic Approach
- 01NQ0ZZ Release Sacral Plexus, Open Approach
- 01NQ3ZZ Release Sacral Plexus, Percutaneous Approach
- 01NQ4ZZ Release Sacral Plexus, Percutaneous Endoscopic Approach
- 01NR0ZZ Release Sacral Nerve, Open Approach
- 01NR3ZZ Release Sacral Nerve, Percutaneous Approach
- 01NR4ZZ Release Sacral Nerve, Percutaneous Endoscopic Approach
About the 01N Code Range
The ICD-10-PCS root operation Release (Code 01N) refers to freeing a body part from abnormal constraint by cutting or otherwise removing tissue, without cutting out or replacing the body part. This root operation is used specifically within the Medical and Surgical section for the Peripheral Nervous System.
The provided ICD-10-PCS release codes describe procedures that involve releasing nerves or nerve plexuses from restrictive tissue to restore function or relieve symptoms. Examples include releasing the Cervical Plexus via an Open Approach (01N00ZZ) or using a minimally invasive Percutaneous Endoscopic Approach for the Median Nerve (01N54ZZ). Other nerves targeted include the Ulnar Nerve, Radial Nerve, Thoracic Nerve, and various sympathetic nerves such as the Thoracic Sympathetic Nerve. Both plexuses and individual nerves can be treated by releasing constrictive tissue, using approaches tailored to the location and clinical situation. Utilizing these codes accurately supports detailed documentation of nerve release procedures in the peripheral nervous system.
Questions About This Page
How many billable codes are in the 01N range?
Of the 70 codes in this range, 69 are billable and valid for inpatient claim submission from October 1, 2025 through September 30, 2026. Table header codes group them but cannot be reported on claims.
What does the 01N range classify?
The range classifies Release procedures, freeing a body part from an abnormal physical constraint by cutting or by use of force, performed on the peripheral nervous system. Each code adds the body part, approach, device, and qualifier in characters four through seven, and links to its own reference page.
Related References
Source: CMS FY 2026 ICD-10-PCS order file and code tables, effective October 1, 2025 through September 30, 2026.
