ICD-10-PCS Code For Lower Arm And Wrist Muscle Right: Procedure Code Group Overview

The International Classification of Diseases, Tenth Revision, Procedure Coding System (ICD-10-PCS) code group 0KN9 includes procedures performed to release muscles in the lower arm and wrist, right side. These ICD-10-PCS codes are used for inpatient documentation when surgical release of constricting tissue, adhesions, or abnormal physical constraints affecting the right lower arm and wrist muscles is performed. Accurate coding within the ICD-10-PCS 0KN9 group is essential for proper inpatient reimbursement, as it captures the specific procedure performed and supports clinical documentation accuracy.

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Lower Arm And Wrist Muscle Release Procedure Overview

Procedures in this group involve surgically releasing constricting tissue or adhesions affecting the muscles of the lower arm and wrist on the right side. These procedures target the Muscles body system and restore range of motion or relieve tension by cutting or applying force to free the muscle. Accurate ICD-10-PCS coding of these releases supports correct inpatient reimbursement and reflects the clinical work performed.

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
0	Section	Medical and Surgical
K	Body System	Muscles
N	Operation	Release
9	Body Part	Lower Arm and Wrist Muscle, Right

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ICD-10-PCS Code For Lower Arm And Wrist Muscle Right: Procedure Code Group Overview

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Lower Arm And Wrist Muscle Release Procedure Overview

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
0	Section	Medical and Surgical
K	Body System	Muscles
N	Operation	Release
9	Body Part	Lower Arm and Wrist Muscle, Right

When to Use

Use a code from this group when a surgeon performs a release of the right lower arm and wrist muscles to eliminate adhesions, contractures, or other restricting tissue. Assign these codes for inpatient cases where the primary operative action is freeing the muscle by cutting or by the use of force.

ICD-10-PCS Codes

4 rows

ICD-10-PCS Code	Description
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

DRG Codes

3 rows

DRG Code	Description
500	Soft Tissue Procedures with MCC
501	Soft Tissue Procedures with CC
502	Soft Tissue Procedures without CC/MCC

Typical Clinical Scenarios

A patient with a chronic post-traumatic flexion contracture of the right wrist and lower forearm muscles who has progressive loss of range of motion and functional impairment despite prolonged nonoperative therapy is admitted for a planned inpatient surgical release to restore mobility; the procedure involves surgically cutting adhesions and tight muscular bands in the right lower arm and wrist to free the muscle. Typical codes: 0KN90ZZ
An elderly patient presents acutely after a burn injury to the right forearm with full-thickness scar contractures causing ischemia and severe restriction of wrist extension; urgent inpatient release of the right lower arm and wrist muscles is performed to relieve constriction and preserve limb function. Typical codes: 0KN90ZZ, 0KN9XZZ
A patient with a prior right wrist tendon repair develops painful adhesions and recurrent limited motion refractory to conservative management, and the surgical team performs a minimally invasive release of adhesions in the right lower arm and wrist muscles using an endoscopic technique during an inpatient stay to improve function. Typical codes: 0KN94ZZ, 0KN93ZZ

Related Codes

0KN0-HEAD-MUSCLE-RELEASE

ICD-10-PCS Code For Head Muscle: Procedure Code Group Overview

0KN1-FACIAL-MUSCLE-RELEASE

ICD-10-PCS Code For Facial Muscle: Procedure Code Group Overview

0KN2-NECK-MUSCLE-RELEASE

ICD-10-PCS Code For Neck Muscle, Right: Procedure Code Group Overview

0KN3-NECK-MUSCLE-RELEASE

ICD-10-PCS Code For Neck Muscle, Left: Procedure Code Group Overview

0KN4-TONGUE-PALATE-PHARYNX-RELEASE

ICD-10-PCS Code For Tongue Palate Pharynx Muscle: Procedure Code Group Overview

0KN5-SHOULDER-MUSCLE-RELEASE

ICD-10-PCS Code For Shoulder Muscle, Right: Procedure Code Group Overview

0KN6-LEFT-SHOULDER-RELEASE

ICD-10-PCS Code For Left Shoulder Muscle: Procedure Code Group Overview

0KN7-UPPER-ARM-MUSCLE-RELEASE

ICD-10-PCS Code For Upper Arm Muscle Right: Procedure Code Group Overview

0KN8-UPPER-ARM-MUSCLE-RELEASE

ICD-10-PCS Code For Upper Arm Muscle Left: Procedure Code Group Overview

0KNB-LEFT-LOWER-ARM-RELEASE

ICD-10-PCS Code For Lower Arm And Wrist Muscle Left: Procedure Code Group Overview

Showing 1–10 of 25

Frequently Asked Questions

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

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Trek Health ingests and normalizes Transparency in Coverage data and payer policy updates to give provider organizations a clear view of how commercial reimbursement behaves across markets, payers, and services. Our platform transforms raw payer disclosures into structured intelligence that supports contract evaluation, payer negotiations, and service line strategy. By combining market benchmarks with ongoing policy visibility, Trek helps teams identify variability, risk, and opportunity in commercial reimbursement. The result is faster insight, stronger negotiating positions, and more informed financial decisions.

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When to Use

ICD-10-PCS Codes

4 rows

ICD-10-PCS Code	Description
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

DRG Codes

3 rows

DRG Code	Description
500	Soft Tissue Procedures with MCC
501	Soft Tissue Procedures with CC
502	Soft Tissue Procedures without CC/MCC

Typical Clinical Scenarios

A patient with a chronic post-traumatic flexion contracture of the right wrist and lower forearm muscles who has progressive loss of range of motion and functional impairment despite prolonged nonoperative therapy is admitted for a planned inpatient surgical release to restore mobility; the procedure involves surgically cutting adhesions and tight muscular bands in the right lower arm and wrist to free the muscle. Typical codes: 0KN90ZZ
An elderly patient presents acutely after a burn injury to the right forearm with full-thickness scar contractures causing ischemia and severe restriction of wrist extension; urgent inpatient release of the right lower arm and wrist muscles is performed to relieve constriction and preserve limb function. Typical codes: 0KN90ZZ, 0KN9XZZ
A patient with a prior right wrist tendon repair develops painful adhesions and recurrent limited motion refractory to conservative management, and the surgical team performs a minimally invasive release of adhesions in the right lower arm and wrist muscles using an endoscopic technique during an inpatient stay to improve function. Typical codes: 0KN94ZZ, 0KN93ZZ

Related Codes

0KN0-HEAD-MUSCLE-RELEASE

ICD-10-PCS Code For Head Muscle: Procedure Code Group Overview

0KN1-FACIAL-MUSCLE-RELEASE

ICD-10-PCS Code For Facial Muscle: Procedure Code Group Overview

0KN2-NECK-MUSCLE-RELEASE

ICD-10-PCS Code For Neck Muscle, Right: Procedure Code Group Overview

0KN3-NECK-MUSCLE-RELEASE

ICD-10-PCS Code For Neck Muscle, Left: Procedure Code Group Overview

0KN4-TONGUE-PALATE-PHARYNX-RELEASE

ICD-10-PCS Code For Tongue Palate Pharynx Muscle: Procedure Code Group Overview

0KN5-SHOULDER-MUSCLE-RELEASE

ICD-10-PCS Code For Shoulder Muscle, Right: Procedure Code Group Overview

0KN6-LEFT-SHOULDER-RELEASE

ICD-10-PCS Code For Left Shoulder Muscle: Procedure Code Group Overview

0KN7-UPPER-ARM-MUSCLE-RELEASE

ICD-10-PCS Code For Upper Arm Muscle Right: Procedure Code Group Overview

0KN8-UPPER-ARM-MUSCLE-RELEASE

ICD-10-PCS Code For Upper Arm Muscle Left: Procedure Code Group Overview

0KNB-LEFT-LOWER-ARM-RELEASE

ICD-10-PCS Code For Lower Arm And Wrist Muscle Left: Procedure Code Group Overview

Showing 1–10 of 25

Frequently Asked Questions

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

Published by

Trek Health powers OpenPayer with a leading commercial payer intelligence platform, seamlessly converting fragmented payer data into actionable insights for provider organizations.

ICD-10-PCS Code For Lower Arm And Wrist Muscle Right: Procedure Code Group Overview

Sign up for ICD-10-PCS Code For Lower Arm And Wrist Muscle Right: Procedure Code Group Overview policy alerts

Lower Arm And Wrist Muscle Release Procedure Overview

Code Attributes

ICD-10-PCS Code For Lower Arm And Wrist Muscle Right: Procedure Code Group Overview

Sign up for ICD-10-PCS Code For Lower Arm And Wrist Muscle Right: Procedure Code Group Overview policy alerts

Lower Arm And Wrist Muscle Release Procedure Overview

Code Attributes

When to Use

ICD-10-PCS Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

Which procedures are included in the ICD-10-PCS 0KN9 code group?

What is the ICD-10-PCS section and body system for these procedures?

How does accurate coding within 0KN9 affect inpatient reimbursement?

Which DRGs are related to procedures coded in 0KN9?

What clinical situations do procedures in this group address?

References

When to Use

ICD-10-PCS Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

Which procedures are included in the ICD-10-PCS 0KN9 code group?

What is the ICD-10-PCS section and body system for these procedures?

How does accurate coding within 0KN9 affect inpatient reimbursement?

Which DRGs are related to procedures coded in 0KN9?

What clinical situations do procedures in this group address?

References