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

The International Classification of Diseases, Tenth Revision, Procedure Coding System (ICD-10-PCS) code group 0K90 includes procedures performed to drain fluids or gases from muscles in the head. These ICD-10-PCS codes are used for inpatient documentation when a clinician evacuates an accumulated fluid collection or relieves a pathogenic buildup within head musculature. Accurate coding within the ICD-10-PCS 0K90 group is essential for proper inpatient reimbursement, as it captures the procedure performed and supports clinical documentation accuracy.

Customize your policy alerts

Sign up for ICD-10-PCS Code For Head Muscle: Procedure Code Group Overview policy alerts

Get alerted when relevant policies change without checking for updates manually.

Monitor payer policy activity

Receive email alerts as soon as relevant payer policies are published or updated.

Head Muscle Drainage Procedure Overview

Procedures in this group involve drainage of fluids or gases from muscles in the head and target the Muscles body system. These inpatient procedures remove accumulated fluid collections such as hematomas, seromas, or abscesses from head muscles to relieve pressure, treat infection, or improve function. Accurate ICD-10-PCS coding of these drainage procedures supports proper clinical documentation and is important for correct inpatient reimbursement and case mix assignment.

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
0	Section	Medical and Surgical
K	Body System	Muscles
9	Operation	Drainage
0	Body Part	Head Muscle

Explore openpayer tools

View all tools

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

Customize your policy alerts

Sign up for ICD-10-PCS Code For Head Muscle: Procedure Code Group Overview policy alerts

Get alerted when relevant policies change without checking for updates manually.

Monitor payer policy activity

Receive email alerts as soon as relevant payer policies are published or updated.

Head 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
0	Body Part	Head Muscle

When to Use

Use a code from this group when an inpatient procedure involves draining fluid or gas from head muscles as the principal action. These codes apply when the documented operation specifically identifies drainage of head musculature during the hospital encounter.

ICD-10-PCS Codes

9 rows

ICD-10-PCS Code	Description
0K9000Z	Drainage of Head Muscle with Drainage Device, Open Approach
0K900ZX	Drainage of Head Muscle, Open Approach, Diagnostic
0K900ZZ	Drainage of Head Muscle, Open Approach
0K9030Z	Drainage of Head Muscle with Drainage Device, Percutaneous Approach
0K903ZX	Drainage of Head Muscle, Percutaneous Approach, Diagnostic
0K903ZZ	Drainage of Head Muscle, Percutaneous Approach
0K9040Z	Drainage of Head Muscle with Drainage Device, Percutaneous Endoscopic Approach
0K904ZX	Drainage of Head Muscle, Percutaneous Endoscopic Approach, Diagnostic
0K904ZZ	Drainage of Head Muscle, Percutaneous Endoscopic Approach

DRG Codes

21 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
143	Other Ear, Nose, Mouth and Throat O.R. Procedures with MCC
144	Other Ear, Nose, Mouth and Throat O.R. Procedures with CC
145	Other Ear, Nose, Mouth and Throat O.R. 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

Showing 1–10 of 21

Typical Clinical Scenarios

A middle-aged adult presents to the emergency department with rapidly expanding swelling and severe pain over the masseter and temporal muscles after facial trauma with suspected intramuscular hematoma causing trismus and airway compromise risk; imaging confirms a large collection within head musculature requiring urgent evacuation to relieve pressure and prevent ischemia or infection. An open operative drainage is performed to completely evacuate the hematoma and obtain hemostasis. Typical codes: 0K900ZZ, 0K9000Z
An elderly patient with poorly controlled diabetes develops localized swelling, erythema, and fluctuance over a sternocleidomastoid muscle region of the neck with systemic signs of infection; inpatient admission is required for IV antibiotics and source control. Percutaneous imaging-guided drainage of the intramuscular abscess is done to evacuate purulent material and allow microbiologic sampling. Typical codes: 0K903ZZ, 0K9030Z
A young adult undergoes planned debridement after prior craniomaxillofacial surgery complicated by a persistent seroma within temporalis muscle identified on outpatient follow-up; inpatient procedure is scheduled due to need for anesthesia and possible irrigation with drain placement to prevent recurrence. A percutaneous endoscopic approach is used to evacuate the serous collection and place a drainage device. Typical codes: 0K9040Z, 0K904ZZ

Related Codes

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

0K9B-LEFT-LOWER-ARM-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.

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.

Explore openpayer tools

View all tools

When to Use

ICD-10-PCS Codes

9 rows

ICD-10-PCS Code	Description
0K9000Z	Drainage of Head Muscle with Drainage Device, Open Approach
0K900ZX	Drainage of Head Muscle, Open Approach, Diagnostic
0K900ZZ	Drainage of Head Muscle, Open Approach
0K9030Z	Drainage of Head Muscle with Drainage Device, Percutaneous Approach
0K903ZX	Drainage of Head Muscle, Percutaneous Approach, Diagnostic
0K903ZZ	Drainage of Head Muscle, Percutaneous Approach
0K9040Z	Drainage of Head Muscle with Drainage Device, Percutaneous Endoscopic Approach
0K904ZX	Drainage of Head Muscle, Percutaneous Endoscopic Approach, Diagnostic
0K904ZZ	Drainage of Head Muscle, Percutaneous Endoscopic Approach

DRG Codes

21 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
143	Other Ear, Nose, Mouth and Throat O.R. Procedures with MCC
144	Other Ear, Nose, Mouth and Throat O.R. Procedures with CC
145	Other Ear, Nose, Mouth and Throat O.R. 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

Showing 1–10 of 21

Typical Clinical Scenarios

A middle-aged adult presents to the emergency department with rapidly expanding swelling and severe pain over the masseter and temporal muscles after facial trauma with suspected intramuscular hematoma causing trismus and airway compromise risk; imaging confirms a large collection within head musculature requiring urgent evacuation to relieve pressure and prevent ischemia or infection. An open operative drainage is performed to completely evacuate the hematoma and obtain hemostasis. Typical codes: 0K900ZZ, 0K9000Z
An elderly patient with poorly controlled diabetes develops localized swelling, erythema, and fluctuance over a sternocleidomastoid muscle region of the neck with systemic signs of infection; inpatient admission is required for IV antibiotics and source control. Percutaneous imaging-guided drainage of the intramuscular abscess is done to evacuate purulent material and allow microbiologic sampling. Typical codes: 0K903ZZ, 0K9030Z
A young adult undergoes planned debridement after prior craniomaxillofacial surgery complicated by a persistent seroma within temporalis muscle identified on outpatient follow-up; inpatient procedure is scheduled due to need for anesthesia and possible irrigation with drain placement to prevent recurrence. A percutaneous endoscopic approach is used to evacuate the serous collection and place a drainage device. Typical codes: 0K9040Z, 0K904ZZ

Related Codes

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

0K9B-LEFT-LOWER-ARM-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 Head Muscle: Procedure Code Group Overview

Sign up for ICD-10-PCS Code For Head Muscle: Procedure Code Group Overview policy alerts

Head Muscle Drainage Procedure Overview

Code Attributes

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

Sign up for ICD-10-PCS Code For Head Muscle: Procedure Code Group Overview policy alerts

Head Muscle Drainage 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 0K90 code group?

What body system and operation do 0K90 codes represent?

How are individual codes in this group differentiated?

Why is accurate coding of 0K90 procedures important for inpatient care?

Which DRG families may be related to procedures coded in the 0K90 group?

References

When to Use

ICD-10-PCS Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

Which procedures are included in the ICD-10-PCS 0K90 code group?

What body system and operation do 0K90 codes represent?

How are individual codes in this group differentiated?

Why is accurate coding of 0K90 procedures important for inpatient care?

Which DRG families may be related to procedures coded in the 0K90 group?

References