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ICD 10 Code 4A1605Z

Monitoring of Lymphatic Flow, Open Approach

4A1605Z is a valid billable ICD-10 procedure code for Monitoring of Lymphatic Flow, Open Approach. It is found in the 2025 version of the ICD-10 Procedure Coding System (PCS) and can be used in all HIPAA-covered transactions from Oct 01, 2024 - Sep 30, 2025.

Monitoring involves:
Determining the level of a physiological or physical function repetitively over a period of time.

Open approach involves:
Cutting through the skin or mucous membrane and any other body layers necessary to expose the site of the procedure

MS-DRG - Medicare Severity-Diagnosis Related Group
  • MDC 09 Diseases & Disorders of the Skin, Subcutaneous Tissue & Breast
    Other Skin, Subcutaneous Tissue and Breast Procedures
    • DRG 579 - OTHER SKIN, SUBCUTANEOUS TISSUE AND BREAST PROCEDURES WITH MCC
    • DRG 580 - OTHER SKIN, SUBCUTANEOUS TISSUE AND BREAST PROCEDURES WITH CC
    • DRG 581 - OTHER SKIN, SUBCUTANEOUS TISSUE AND BREAST PROCEDURES WITHOUT CC/MCC
  • MDC 16 Diseases & Disorders of Blood, Blood Forming Organs, Immunologic Disorders
    Other O.R. Procedures of the Blood and Blood Forming Organs
    • DRG 802 - OTHER O.R. PROCEDURES OF THE BLOOD AND BLOOD FORMING ORGANS WITH MCC
    • DRG 803 - OTHER O.R. PROCEDURES OF THE BLOOD AND BLOOD FORMING ORGANS WITH CC
    • DRG 804 - OTHER O.R. PROCEDURES OF THE BLOOD AND BLOOD FORMING ORGANS WITHOUT CC/MCC
  • MDC 99 Other
    Non-extensive Procedure Unrelated to Principal Diagnosis
    • DRG 987 - NON-EXTENSIVE O.R. PROCEDURE UNRELATED TO PRINCIPAL DIAGNOSIS WITH MCC
    • DRG 988 - NON-EXTENSIVE O.R. PROCEDURE UNRELATED TO PRINCIPAL DIAGNOSIS WITH CC
    • DRG 989 - NON-EXTENSIVE O.R. PROCEDURE UNRELATED TO PRINCIPAL DIAGNOSIS WITHOUT CC/MCC

ICD-10-PCS code structure for 4A1605Z — See Table View

1: Section 4 Measurement and Monitoring
2: Body System A Physiological Systems
3: Root Operation 1 Monitoring
4: Body Part 6 Lymphatic
5: Approach 0 Open
6: Device 5 Flow
7: Qualifier Z No Qualifier

See also