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

The International Classification of Diseases, Tenth Revision, Procedure Coding System (ICD-10-PCS) code group 0K9B includes procedures performed to drain fluids or gases from muscles in the lower arm and wrist on the left side. These ICD-10-PCS codes are used for inpatient documentation when a clinician performs operative or percutaneous drainage of infected, hemorrhagic, or accumulated fluid within the left lower arm and wrist muscles. Accurate coding within the ICD-10-PCS 0K9B group is essential for proper inpatient reimbursement, as it captures the specific drainage procedure performed and supports clinical documentation accuracy.

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Lower Arm And Wrist Muscle Drainage Procedure Overview

This procedure group includes drainage procedures performed on the muscles of the lower arm and wrist, left side, targeting the musculoskeletal body system. These procedures involve removing fluids or exudates from muscle tissue to treat infection, hematoma, or abscess. Accurate ICD-10-PCS coding of these drainage procedures ensures the inpatient record reflects the intervention performed and supports correct case mix assignment and reimbursement.

Code Attributes

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

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

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Lower Arm And Wrist Muscle Drainage Procedure Overview

Code Attributes

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

When to Use

Use a code from this group when an inpatient procedure involves drainage of fluid or gas from the left lower arm and wrist muscles, whether performed percutaneously or via open surgical approach. These codes apply when the procedure is documented as drainage of muscle tissue to treat infection, hematoma, or other fluid collections.

ICD-10-PCS Codes

9 rows

ICD-10-PCS Code	Description
0K9B00Z	Drainage of Left Lower Arm and Wrist Muscle with Drainage Device, Open Approach
0K9B0ZX	Drainage of Left Lower Arm and Wrist Muscle, Open Approach, Diagnostic
0K9B0ZZ	Drainage of Left Lower Arm and Wrist Muscle, Open Approach
0K9B30Z	Drainage of Left Lower Arm and Wrist Muscle with Drainage Device, Percutaneous Approach
0K9B3ZX	Drainage of Left Lower Arm and Wrist Muscle, Percutaneous Approach, Diagnostic
0K9B3ZZ	Drainage of Left Lower Arm and Wrist Muscle, Percutaneous Approach
0K9B40Z	Drainage of Left Lower Arm and Wrist Muscle with Drainage Device, Percutaneous Endoscopic Approach
0K9B4ZX	Drainage of Left Lower Arm and Wrist Muscle, Percutaneous Endoscopic Approach, Diagnostic
0K9B4ZZ	Drainage of Left Lower Arm and Wrist Muscle, Percutaneous Endoscopic Approach

DRG Codes

18 rows

DRG Code	Description
040	Peripheral, Cranial Nerve and Other Nervous System Procedures with MCC
041	Peripheral, Cranial Nerve and Other Nervous System Procedures with CC or Peripheral Neurostimulator
042	Peripheral, Cranial Nerve and Other Nervous System Procedures without CC/MCC
500	Soft Tissue Procedures with MCC
501	Soft Tissue Procedures with CC
502	Soft Tissue Procedures without CC/MCC
579	Other Skin, Subcutaneous Tissue and Breast Procedures with MCC
580	Other Skin, Subcutaneous Tissue and Breast Procedures with CC
581	Other Skin, Subcutaneous Tissue and Breast Procedures without CC/MCC
802	Other O.R. Procedures of the Blood and Blood Forming Organs with MCC

Showing 1–10 of 18

Typical Clinical Scenarios

An adult patient presents to the emergency department with rapidly progressive swelling, erythema, severe pain, and systemic signs of sepsis in the left forearm after a puncture wound; imaging and exam suggest an intramuscular abscess within the left lower arm/wrist musculature requiring urgent source control. An open surgical incision and drainage is performed to evacuate purulent material and place a drain for continued postoperative drainage. Typical codes: 0K9B00Z, 0K9B0ZZ
An elderly patient with anticoagulation therapy develops a painful expanding hematoma within the left lower arm muscles after minor trauma, causing compartmental pressure and neurovascular compromise; the patient is admitted for operative evacuation and muscle decompression. A percutaneous approach is attempted under imaging guidance to aspirate and drain the hematoma; if a drain is left in place, a drainage device code is used. Typical codes: 0K9B30Z, 0K9B3ZZ
A hospitalized patient with chronic left forearm soft-tissue infection and a persistent intramuscular fluid collection that failed prior conservative treatment is taken to the OR for percutaneous endoscopic-assisted drainage to precisely debride and evacuate the collection and inspect the muscle. The procedure is documented as drainage of the left lower arm and wrist muscle via a percutaneous endoscopic approach. Typical codes: 0K9B40Z, 0K9B4ZZ

Related Codes

0K90-HEAD-MUSCLE-DRAINAGE

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

0K91-FACIAL-MUSCLE-DRAINAGE

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

0K92-NECK-MUSCLE-RIGHT-DRAINAGE

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

0K93-NECK-MUSCLE-LEFT-DRAINAGE

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

0K94-TONGUE-PALATE-PHARYNX-DRAINAGE

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

0K95-SHOULDER-MUSCLE-DRAINAGE

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

0K96-SHOULDER-MUSCLE-LEFT-DRAINAGE

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

0K97-UPPER-ARM-MUSCLE-DRAINAGE

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

0K98-LEFT-UPPER-ARM-DRAINAGE

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

0K99-LOWER-ARM-AND-WRIST-DRAINAGE

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

Showing 1–10 of 27

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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When to Use

ICD-10-PCS Codes

9 rows

ICD-10-PCS Code	Description
0K9B00Z	Drainage of Left Lower Arm and Wrist Muscle with Drainage Device, Open Approach
0K9B0ZX	Drainage of Left Lower Arm and Wrist Muscle, Open Approach, Diagnostic
0K9B0ZZ	Drainage of Left Lower Arm and Wrist Muscle, Open Approach
0K9B30Z	Drainage of Left Lower Arm and Wrist Muscle with Drainage Device, Percutaneous Approach
0K9B3ZX	Drainage of Left Lower Arm and Wrist Muscle, Percutaneous Approach, Diagnostic
0K9B3ZZ	Drainage of Left Lower Arm and Wrist Muscle, Percutaneous Approach
0K9B40Z	Drainage of Left Lower Arm and Wrist Muscle with Drainage Device, Percutaneous Endoscopic Approach
0K9B4ZX	Drainage of Left Lower Arm and Wrist Muscle, Percutaneous Endoscopic Approach, Diagnostic
0K9B4ZZ	Drainage of Left Lower Arm and Wrist Muscle, Percutaneous Endoscopic Approach

DRG Codes

18 rows

DRG Code	Description
040	Peripheral, Cranial Nerve and Other Nervous System Procedures with MCC
041	Peripheral, Cranial Nerve and Other Nervous System Procedures with CC or Peripheral Neurostimulator
042	Peripheral, Cranial Nerve and Other Nervous System Procedures without CC/MCC
500	Soft Tissue Procedures with MCC
501	Soft Tissue Procedures with CC
502	Soft Tissue Procedures without CC/MCC
579	Other Skin, Subcutaneous Tissue and Breast Procedures with MCC
580	Other Skin, Subcutaneous Tissue and Breast Procedures with CC
581	Other Skin, Subcutaneous Tissue and Breast Procedures without CC/MCC
802	Other O.R. Procedures of the Blood and Blood Forming Organs with MCC

Showing 1–10 of 18

Typical Clinical Scenarios

An adult patient presents to the emergency department with rapidly progressive swelling, erythema, severe pain, and systemic signs of sepsis in the left forearm after a puncture wound; imaging and exam suggest an intramuscular abscess within the left lower arm/wrist musculature requiring urgent source control. An open surgical incision and drainage is performed to evacuate purulent material and place a drain for continued postoperative drainage. Typical codes: 0K9B00Z, 0K9B0ZZ
An elderly patient with anticoagulation therapy develops a painful expanding hematoma within the left lower arm muscles after minor trauma, causing compartmental pressure and neurovascular compromise; the patient is admitted for operative evacuation and muscle decompression. A percutaneous approach is attempted under imaging guidance to aspirate and drain the hematoma; if a drain is left in place, a drainage device code is used. Typical codes: 0K9B30Z, 0K9B3ZZ
A hospitalized patient with chronic left forearm soft-tissue infection and a persistent intramuscular fluid collection that failed prior conservative treatment is taken to the OR for percutaneous endoscopic-assisted drainage to precisely debride and evacuate the collection and inspect the muscle. The procedure is documented as drainage of the left lower arm and wrist muscle via a percutaneous endoscopic approach. Typical codes: 0K9B40Z, 0K9B4ZZ

Related Codes

0K90-HEAD-MUSCLE-DRAINAGE

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

0K91-FACIAL-MUSCLE-DRAINAGE

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

0K92-NECK-MUSCLE-RIGHT-DRAINAGE

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

0K93-NECK-MUSCLE-LEFT-DRAINAGE

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

0K94-TONGUE-PALATE-PHARYNX-DRAINAGE

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

0K95-SHOULDER-MUSCLE-DRAINAGE

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

0K96-SHOULDER-MUSCLE-LEFT-DRAINAGE

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

0K97-UPPER-ARM-MUSCLE-DRAINAGE

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

0K98-LEFT-UPPER-ARM-DRAINAGE

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

0K99-LOWER-ARM-AND-WRIST-DRAINAGE

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

Showing 1–10 of 27

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: Procedure Code Group Overview

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

Lower Arm And Wrist Muscle Drainage Procedure Overview

Code Attributes

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

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

Lower Arm And Wrist Muscle Drainage Procedure Overview

Code Attributes

When to Use

ICD-10-PCS Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

Which ICD-10-PCS code group covers drainage of the left lower arm and wrist muscles?

What specific procedure codes are included in the 0K9B group?

What body part and approach attributes are captured by the 0K9B codes?

How does accurate coding within 0K9B affect inpatient reimbursement?

Which DRG categories might be related to procedures coded in 0K9B?

References

When to Use

ICD-10-PCS Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

Which ICD-10-PCS code group covers drainage of the left lower arm and wrist muscles?

What specific procedure codes are included in the 0K9B group?

What body part and approach attributes are captured by the 0K9B codes?

How does accurate coding within 0K9B affect inpatient reimbursement?

Which DRG categories might be related to procedures coded in 0K9B?

References