ICD-10-PCS Code For Knee Joint Left: Procedure Code Group Overview

The International Classification of Diseases, Tenth Revision, Procedure Coding System (ICD-10-PCS) code group 0S9D includes procedures performed to drain fluids and/or gases from the knee joint, left. These ICD-10-PCS codes are used for inpatient documentation when a clinician performs aspiration or evacuation of fluid or gas from the left knee joint for diagnostic or therapeutic reasons. Accurate coding within the ICD-10-PCS 0S9D 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 Knee Joint Left: 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.

Knee Joint, Left Drainage Procedure Overview

This procedure group includes drainage of the left knee joint, targeting the lower joints body system. These procedures involve removing fluids or gases from the knee joint to relieve symptoms, obtain diagnostic samples, or treat infection. Accurate ICD-10-PCS coding of drainage procedures ensures appropriate inpatient reimbursement and reflects the clinical care delivered.

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
0	Section	Medical and Surgical
S	Body System	Lower Joints
9	Operation	Drainage
D	Body Part	Knee Joint, Left

Explore openpayer tools

View all tools

ICD-10-PCS Code For Knee Joint Left: Procedure Code Group Overview

Customize your policy alerts

Sign up for ICD-10-PCS Code For Knee Joint Left: 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.

Knee Joint, Left Drainage Procedure Overview

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
0	Section	Medical and Surgical
S	Body System	Lower Joints
9	Operation	Drainage
D	Body Part	Knee Joint, Left

When to Use

Use a code from this group when an aspiration or evacuation procedure is performed on the left knee joint during an inpatient encounter. Typical clinical circumstances include symptomatic effusion, suspected septic arthritis, or removal of intra-articular gas following trauma or intervention.

ICD-10-PCS Codes

9 rows

ICD-10-PCS Code	Description
0S9D00Z	Drainage of Left Knee Joint with Drainage Device, Open Approach
0S9D0ZX	Drainage of Left Knee Joint, Open Approach, Diagnostic
0S9D0ZZ	Drainage of Left Knee Joint, Open Approach
0S9D30Z	Drainage of Left Knee Joint with Drainage Device, Percutaneous Approach
0S9D3ZX	Drainage of Left Knee Joint, Percutaneous Approach, Diagnostic
0S9D3ZZ	Drainage of Left Knee Joint, Percutaneous Approach
0S9D40Z	Drainage of Left Knee Joint with Drainage Device, Percutaneous Endoscopic Approach
0S9D4ZX	Drainage of Left Knee Joint, Percutaneous Endoscopic Approach, Diagnostic
0S9D4ZZ	Drainage of Left Knee Joint, Percutaneous Endoscopic Approach

DRG Codes

14 rows

DRG Code	Description
485	Knee Procedures with Principal Diagnosis of Infection with MCC
486	Knee Procedures with Principal Diagnosis of Infection with CC
487	Knee Procedures with Principal Diagnosis of Infection without CC/MCC
488	Knee Procedures without Principal Diagnosis of Infection with CC/MCC
489	Knee Procedures without Principal Diagnosis of Infection without CC/MCC
628	Other Endocrine, Nutritional and Metabolic O.R. Procedures with MCC
629	Other Endocrine, Nutritional and Metabolic O.R. Procedures with CC
630	Other Endocrine, Nutritional and Metabolic O.R. Procedures without CC/MCC
907	Other O.R. Procedures for Injuries with MCC
908	Other O.R. Procedures for Injuries with CC

Showing 1–10 of 14

Typical Clinical Scenarios

An elderly patient with a history of osteoarthritis presents to the hospital with progressive left knee swelling, pain, and limited mobility over several days; joint aspiration is performed on the inpatient unit to relieve pain and obtain synovial fluid for analysis to rule out crystal arthropathy or infection. Typical codes: 0S9D30Z, 0S9D3ZX
A younger adult is admitted emergently with acute left knee swelling, fever, and severe pain after a puncture wound; due to concern for septic arthritis the orthopedic team performs an urgent open drainage and washout of the left knee to evacuate purulent fluid and reduce intra-articular infection. Typical codes: 0S9D00Z, 0S9D0ZZ
A patient previously managed with serial percutaneous aspirations returns with recurrent symptomatic effusion and suspicion of loculated fluid; during a planned inpatient procedure the team performs percutaneous endoscopic drainage to visualize and evacuate persistent synovial collections and place drainage if needed. Typical codes: 0S9D40Z, 0S9D4ZZ

Related Codes

0S90-LUMBAR-VERTEBRAL-JOINT-DRAINAGE

ICD-10-PCS Code For Lumbar Vertebral Joint: Procedure Code Group Overview

0S92-LUMBAR-VERTEBRAL-DISC-DRAINAGE

ICD-10-PCS Code For Lumbar Vertebral Disc: Procedure Code Group Overview

0S93-LUMBOSACRAL-JOINT-DRAINAGE

ICD-10-PCS Code For Lumbosacral Joint: Procedure Code Group Overview

0S94-LUMBOSACRAL-DISC-DRAINAGE

ICD-10-PCS Code For Lumbosacral Disc: Procedure Code Group Overview

0S95-SACROCOCCYGEAL-JOINT-DRAINAGE

ICD-10-PCS Code For Sacrococcygeal Joint: Procedure Code Group Overview

0S97-SACROILIAC-JOINT-RIGHT-DRAINAGE

ICD-10-PCS Code For Sacroiliac Joint Right: Procedure Code Group Overview

0S98-LEFT-SACROILIAC-JOINT-DRAINAGE

ICD-10-PCS Code For Sacroiliac Joint Left: Procedure Code Group Overview

0S99-HIP-JOINT-RIGHT-DRAINAGE

ICD-10-PCS Code For Hip Joint Right: Procedure Code Group Overview

0S9B-LEFT-HIP-DRAINAGE

ICD-10-PCS Code For Hip Joint Left: Procedure Code Group Overview

0S9C-KNEE-JOINT-RIGHT-DRAINAGE

ICD-10-PCS Code For Knee Joint, Right: Procedure Code Group Overview

Showing 1–10 of 20

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
0S9D00Z	Drainage of Left Knee Joint with Drainage Device, Open Approach
0S9D0ZX	Drainage of Left Knee Joint, Open Approach, Diagnostic
0S9D0ZZ	Drainage of Left Knee Joint, Open Approach
0S9D30Z	Drainage of Left Knee Joint with Drainage Device, Percutaneous Approach
0S9D3ZX	Drainage of Left Knee Joint, Percutaneous Approach, Diagnostic
0S9D3ZZ	Drainage of Left Knee Joint, Percutaneous Approach
0S9D40Z	Drainage of Left Knee Joint with Drainage Device, Percutaneous Endoscopic Approach
0S9D4ZX	Drainage of Left Knee Joint, Percutaneous Endoscopic Approach, Diagnostic
0S9D4ZZ	Drainage of Left Knee Joint, Percutaneous Endoscopic Approach

DRG Codes

14 rows

DRG Code	Description
485	Knee Procedures with Principal Diagnosis of Infection with MCC
486	Knee Procedures with Principal Diagnosis of Infection with CC
487	Knee Procedures with Principal Diagnosis of Infection without CC/MCC
488	Knee Procedures without Principal Diagnosis of Infection with CC/MCC
489	Knee Procedures without Principal Diagnosis of Infection without CC/MCC
628	Other Endocrine, Nutritional and Metabolic O.R. Procedures with MCC
629	Other Endocrine, Nutritional and Metabolic O.R. Procedures with CC
630	Other Endocrine, Nutritional and Metabolic O.R. Procedures without CC/MCC
907	Other O.R. Procedures for Injuries with MCC
908	Other O.R. Procedures for Injuries with CC

Showing 1–10 of 14

Typical Clinical Scenarios

An elderly patient with a history of osteoarthritis presents to the hospital with progressive left knee swelling, pain, and limited mobility over several days; joint aspiration is performed on the inpatient unit to relieve pain and obtain synovial fluid for analysis to rule out crystal arthropathy or infection. Typical codes: 0S9D30Z, 0S9D3ZX
A younger adult is admitted emergently with acute left knee swelling, fever, and severe pain after a puncture wound; due to concern for septic arthritis the orthopedic team performs an urgent open drainage and washout of the left knee to evacuate purulent fluid and reduce intra-articular infection. Typical codes: 0S9D00Z, 0S9D0ZZ
A patient previously managed with serial percutaneous aspirations returns with recurrent symptomatic effusion and suspicion of loculated fluid; during a planned inpatient procedure the team performs percutaneous endoscopic drainage to visualize and evacuate persistent synovial collections and place drainage if needed. Typical codes: 0S9D40Z, 0S9D4ZZ

Related Codes

0S90-LUMBAR-VERTEBRAL-JOINT-DRAINAGE

ICD-10-PCS Code For Lumbar Vertebral Joint: Procedure Code Group Overview

0S92-LUMBAR-VERTEBRAL-DISC-DRAINAGE

ICD-10-PCS Code For Lumbar Vertebral Disc: Procedure Code Group Overview

0S93-LUMBOSACRAL-JOINT-DRAINAGE

ICD-10-PCS Code For Lumbosacral Joint: Procedure Code Group Overview

0S94-LUMBOSACRAL-DISC-DRAINAGE

ICD-10-PCS Code For Lumbosacral Disc: Procedure Code Group Overview

0S95-SACROCOCCYGEAL-JOINT-DRAINAGE

ICD-10-PCS Code For Sacrococcygeal Joint: Procedure Code Group Overview

0S97-SACROILIAC-JOINT-RIGHT-DRAINAGE

ICD-10-PCS Code For Sacroiliac Joint Right: Procedure Code Group Overview

0S98-LEFT-SACROILIAC-JOINT-DRAINAGE

ICD-10-PCS Code For Sacroiliac Joint Left: Procedure Code Group Overview

0S99-HIP-JOINT-RIGHT-DRAINAGE

ICD-10-PCS Code For Hip Joint Right: Procedure Code Group Overview

0S9B-LEFT-HIP-DRAINAGE

ICD-10-PCS Code For Hip Joint Left: Procedure Code Group Overview

0S9C-KNEE-JOINT-RIGHT-DRAINAGE

ICD-10-PCS Code For Knee Joint, Right: Procedure Code Group Overview

Showing 1–10 of 20

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 Knee Joint Left: Procedure Code Group Overview

Sign up for ICD-10-PCS Code For Knee Joint Left: Procedure Code Group Overview policy alerts

Knee Joint, Left Drainage Procedure Overview

Code Attributes

ICD-10-PCS Code For Knee Joint Left: Procedure Code Group Overview

Sign up for ICD-10-PCS Code For Knee Joint Left: Procedure Code Group Overview policy alerts

Knee Joint, Left 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 0S9D code group for the left knee?

What is the primary purpose of procedures coded in 0S9D?

What are the body system and operation attributes for this code group?

How do these codes affect inpatient reimbursement and DRG assignment?

How are diagnostic versus therapeutic drainage procedures represented in the code set?

References

When to Use

ICD-10-PCS Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

Which procedures are included in the ICD-10-PCS 0S9D code group for the left knee?

What is the primary purpose of procedures coded in 0S9D?

What are the body system and operation attributes for this code group?

How do these codes affect inpatient reimbursement and DRG assignment?

How are diagnostic versus therapeutic drainage procedures represented in the code set?

References