C44.701Unspecified malignant neoplasm of skin of unspecified lower limb, including hip

C44.701 is the ICD-10-CM diagnosis code for unspecified malignant neoplasm of skin of unspecified lower limb, including hip. It belongs to category C44 (other and unspecified malignant neoplasm of skin), block C43-C44 (melanoma and other malignant neoplasms of skin) and chapter 2 (neoplasms). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within C44.70, choose C44.701 (unspecified lower limb, including hip) only when documentation doesn't support a more specific option: right lower limb, including hip (C44.702) and left lower limb, including hip (C44.709).

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 173.70 (unspecified malignant neoplasm of skin of lower limb, including hip).