I89.0Lymphedema, not elsewhere classified

I89.0 is the ICD-10-CM diagnosis code for lymphedema, not elsewhere classified. It belongs to category I89 (other noninfective disorders of lymphatic vessels and lymph nodes), block I80-I89 (diseases of veins, lymphatic vessels and lymph nodes, not elsewhere classified) and chapter 9 (diseases of the circulatory system). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within I89 (other noninfective disorders of lymphatic vessels and lymph nodes), I89.0 is specifically for lymphedema, not elsewhere classified. Related codes cover lymphangitis (I89.1), other specified noninfective disorders of lymphatic vessels and lymph nodes (I89.8) and noninfective disorder of lymphatic vessels and lymph nodes, unspecified (I89.9).

Don't report I89.0 together with the conditions in its Excludes1 note: postmastectomy lymphedema (I97.2).

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

In MS-DRG v44.0, it is part of the grouping logic for DRG 606 (Minor Skin Disorders with MCC, relative weight 1.5728) and DRG 607 (Minor Skin Disorders without MCC, relative weight 0.8772), in MDC 09 (Diseases and Disorders of the Skin, Subcutaneous Tissue and Breast), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Before ICD-10, this condition was coded in ICD-9-CM as 457.1 (other lymphedema).