ICD-10-PCS Tabular Index · Section 0 · FY 2026 0KN

0KN Release - Muscles ICD-10-PCS

The 0KN code range contains 113 ICD-10-PCS codes for Release procedures on the muscles. 112 of the codes are billable and valid for inpatient claim submission in fiscal year 2026.

✓ Built from the official CMS FY 2026 datasetEffective Oct 1, 2025 – Sep 30, 2026
113
Procedure Codes
112
Billable Codes
0KN
Characters 1–3
0K
Parent Body System

Root Operation Definition

Release: Freeing a body part from an abnormal physical constraint by cutting or by use of force.

ICD-10-PCS

Codes in the 0KN Range 113 codes · 112 billable

113 of 113 shown
  • 0KN Muscles, ReleaseNon-billable header
  • 0KN00ZZ Release Head Muscle, Open Approach
  • 0KN03ZZ Release Head Muscle, Percutaneous Approach
  • 0KN04ZZ Release Head Muscle, Percutaneous Endoscopic Approach
  • 0KN0XZZ Release Head Muscle, External Approach
  • 0KN10ZZ Release Facial Muscle, Open Approach
  • 0KN13ZZ Release Facial Muscle, Percutaneous Approach
  • 0KN14ZZ Release Facial Muscle, Percutaneous Endoscopic Approach
  • 0KN1XZZ Release Facial Muscle, External Approach
  • 0KN20ZZ Release Right Neck Muscle, Open Approach
  • 0KN23ZZ Release Right Neck Muscle, Percutaneous Approach
  • 0KN24ZZ Release Right Neck Muscle, Percutaneous Endoscopic Approach
  • 0KN2XZZ Release Right Neck Muscle, External Approach
  • 0KN30ZZ Release Left Neck Muscle, Open Approach
  • 0KN33ZZ Release Left Neck Muscle, Percutaneous Approach
  • 0KN34ZZ Release Left Neck Muscle, Percutaneous Endoscopic Approach
  • 0KN3XZZ Release Left Neck Muscle, External Approach
  • 0KN40ZZ Release Tongue, Palate, Pharynx Muscle, Open Approach
  • 0KN43ZZ Release Tongue, Palate, Pharynx Muscle, Percutaneous Approach
  • 0KN44ZZ Release Tongue, Palate, Pharynx Muscle, Percutaneous Endoscopic Approach
  • 0KN4XZZ Release Tongue, Palate, Pharynx Muscle, External Approach
  • 0KN50ZZ Release Right Shoulder Muscle, Open Approach
  • 0KN53ZZ Release Right Shoulder Muscle, Percutaneous Approach
  • 0KN54ZZ Release Right Shoulder Muscle, Percutaneous Endoscopic Approach
  • 0KN5XZZ Release Right Shoulder Muscle, External Approach
  • 0KN60ZZ Release Left Shoulder Muscle, Open Approach
  • 0KN63ZZ Release Left Shoulder Muscle, Percutaneous Approach
  • 0KN64ZZ Release Left Shoulder Muscle, Percutaneous Endoscopic Approach
  • 0KN6XZZ Release Left Shoulder Muscle, External Approach
  • 0KN70ZZ Release Right Upper Arm Muscle, Open Approach
  • 0KN73ZZ Release Right Upper Arm Muscle, Percutaneous Approach
  • 0KN74ZZ Release Right Upper Arm Muscle, Percutaneous Endoscopic Approach
  • 0KN7XZZ Release Right Upper Arm Muscle, External Approach
  • 0KN80ZZ Release Left Upper Arm Muscle, Open Approach
  • 0KN83ZZ Release Left Upper Arm Muscle, Percutaneous Approach
  • 0KN84ZZ Release Left Upper Arm Muscle, Percutaneous Endoscopic Approach
  • 0KN8XZZ Release Left Upper Arm Muscle, External Approach
  • 0KN90ZZ Release Right Lower Arm and Wrist Muscle, Open Approach
  • 0KN93ZZ Release Right Lower Arm and Wrist Muscle, Percutaneous Approach
  • 0KN94ZZ Release Right Lower Arm and Wrist Muscle, Percutaneous Endoscopic Approach
  • 0KN9XZZ Release Right Lower Arm and Wrist Muscle, External Approach
  • 0KNB0ZZ Release Left Lower Arm and Wrist Muscle, Open Approach
  • 0KNB3ZZ Release Left Lower Arm and Wrist Muscle, Percutaneous Approach
  • 0KNB4ZZ Release Left Lower Arm and Wrist Muscle, Percutaneous Endoscopic Approach
  • 0KNBXZZ Release Left Lower Arm and Wrist Muscle, External Approach
  • 0KNC0ZZ Release Right Hand Muscle, Open Approach
  • 0KNC3ZZ Release Right Hand Muscle, Percutaneous Approach
  • 0KNC4ZZ Release Right Hand Muscle, Percutaneous Endoscopic Approach
  • 0KNCXZZ Release Right Hand Muscle, External Approach
  • 0KND0ZZ Release Left Hand Muscle, Open Approach
  • 0KND3ZZ Release Left Hand Muscle, Percutaneous Approach
  • 0KND4ZZ Release Left Hand Muscle, Percutaneous Endoscopic Approach
  • 0KNDXZZ Release Left Hand Muscle, External Approach
  • 0KNF0ZZ Release Right Trunk Muscle, Open Approach
  • 0KNF3ZZ Release Right Trunk Muscle, Percutaneous Approach
  • 0KNF4ZZ Release Right Trunk Muscle, Percutaneous Endoscopic Approach
  • 0KNFXZZ Release Right Trunk Muscle, External Approach
  • 0KNG0ZZ Release Left Trunk Muscle, Open Approach
  • 0KNG3ZZ Release Left Trunk Muscle, Percutaneous Approach
  • 0KNG4ZZ Release Left Trunk Muscle, Percutaneous Endoscopic Approach
  • 0KNGXZZ Release Left Trunk Muscle, External Approach
  • 0KNH0ZZ Release Right Thorax Muscle, Open Approach
  • 0KNH3ZZ Release Right Thorax Muscle, Percutaneous Approach
  • 0KNH4ZZ Release Right Thorax Muscle, Percutaneous Endoscopic Approach
  • 0KNHXZZ Release Right Thorax Muscle, External Approach
  • 0KNJ0ZZ Release Left Thorax Muscle, Open Approach
  • 0KNJ3ZZ Release Left Thorax Muscle, Percutaneous Approach
  • 0KNJ4ZZ Release Left Thorax Muscle, Percutaneous Endoscopic Approach
  • 0KNJXZZ Release Left Thorax Muscle, External Approach
  • 0KNK0ZZ Release Right Abdomen Muscle, Open Approach
  • 0KNK3ZZ Release Right Abdomen Muscle, Percutaneous Approach
  • 0KNK4ZZ Release Right Abdomen Muscle, Percutaneous Endoscopic Approach
  • 0KNKXZZ Release Right Abdomen Muscle, External Approach
  • 0KNL0ZZ Release Left Abdomen Muscle, Open Approach
  • 0KNL3ZZ Release Left Abdomen Muscle, Percutaneous Approach
  • 0KNL4ZZ Release Left Abdomen Muscle, Percutaneous Endoscopic Approach
  • 0KNLXZZ Release Left Abdomen Muscle, External Approach
  • 0KNM0ZZ Release Perineum Muscle, Open Approach
  • 0KNM3ZZ Release Perineum Muscle, Percutaneous Approach
  • 0KNM4ZZ Release Perineum Muscle, Percutaneous Endoscopic Approach
  • 0KNMXZZ Release Perineum Muscle, External Approach
  • 0KNN0ZZ Release Right Hip Muscle, Open Approach
  • 0KNN3ZZ Release Right Hip Muscle, Percutaneous Approach
  • 0KNN4ZZ Release Right Hip Muscle, Percutaneous Endoscopic Approach
  • 0KNNXZZ Release Right Hip Muscle, External Approach
  • 0KNP0ZZ Release Left Hip Muscle, Open Approach
  • 0KNP3ZZ Release Left Hip Muscle, Percutaneous Approach
  • 0KNP4ZZ Release Left Hip Muscle, Percutaneous Endoscopic Approach
  • 0KNPXZZ Release Left Hip Muscle, External Approach
  • 0KNQ0ZZ Release Right Upper Leg Muscle, Open Approach
  • 0KNQ3ZZ Release Right Upper Leg Muscle, Percutaneous Approach
  • 0KNQ4ZZ Release Right Upper Leg Muscle, Percutaneous Endoscopic Approach
  • 0KNQXZZ Release Right Upper Leg Muscle, External Approach
  • 0KNR0ZZ Release Left Upper Leg Muscle, Open Approach
  • 0KNR3ZZ Release Left Upper Leg Muscle, Percutaneous Approach
  • 0KNR4ZZ Release Left Upper Leg Muscle, Percutaneous Endoscopic Approach
  • 0KNRXZZ Release Left Upper Leg Muscle, External Approach
  • 0KNS0ZZ Release Right Lower Leg Muscle, Open Approach
  • 0KNS3ZZ Release Right Lower Leg Muscle, Percutaneous Approach
  • 0KNS4ZZ Release Right Lower Leg Muscle, Percutaneous Endoscopic Approach
  • 0KNSXZZ Release Right Lower Leg Muscle, External Approach
  • 0KNT0ZZ Release Left Lower Leg Muscle, Open Approach
  • 0KNT3ZZ Release Left Lower Leg Muscle, Percutaneous Approach
  • 0KNT4ZZ Release Left Lower Leg Muscle, Percutaneous Endoscopic Approach
  • 0KNTXZZ Release Left Lower Leg Muscle, External Approach
  • 0KNV0ZZ Release Right Foot Muscle, Open Approach
  • 0KNV3ZZ Release Right Foot Muscle, Percutaneous Approach
  • 0KNV4ZZ Release Right Foot Muscle, Percutaneous Endoscopic Approach
  • 0KNVXZZ Release Right Foot Muscle, External Approach
  • 0KNW0ZZ Release Left Foot Muscle, Open Approach
  • 0KNW3ZZ Release Left Foot Muscle, Percutaneous Approach
  • 0KNW4ZZ Release Left Foot Muscle, Percutaneous Endoscopic Approach
  • 0KNWXZZ Release Left Foot Muscle, External Approach

About the 0KN Code Range

The ICD-10-PCS root operation Release (code prefix 0KN) refers to freeing a muscle from abnormal constraints to improve its function or movement. This operation is classified under the Medical and Surgical section and specifically targets muscles.

This root operation covers releasing muscles in various anatomical locations using different approaches. For example, the codes include procedures such as Release Head Muscle performed via Open approach (0KN00ZZ), Percutaneous approach (0KN03ZZ), or Percutaneous Endoscopic approach (0KN04ZZ). Similarly, muscle release can apply to the Facial muscle, Neck muscles on either side, Shoulder muscles, and extends distally down to the Hands and Feet. Approaches range from Open, Percutaneous, External, to Endoscopic. Coding this operation accurately allows documentation of the specific muscle released and method used, essential for treatment records and reimbursement.

Questions About This Page

How many billable codes are in the 0KN range?

Of the 113 codes in this range, 112 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 0KN 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 muscles. Each code adds the body part, approach, device, and qualifier in characters four through seven, and links to its own reference page.

Related References

All ICD-10-PCS SectionsAll of Medical and Surgical (0)All of Body System 0KICD-10-PCS Code LookupICD-10-CM Codes ListMS-DRG ReferenceMedicare Code Edits

Source: CMS FY 2026 ICD-10-PCS order file and code tables, effective October 1, 2025 through September 30, 2026.