D31.90Benign neoplasm of unspecified part of unspecified eye

D31.90 is the ICD-10-CM diagnosis code for benign neoplasm of unspecified part of unspecified eye. It belongs to category D31 (benign neoplasm of eye and adnexa), block D10-D36 (benign neoplasms, except benign neuroendocrine tumors) 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 D31.9, choose D31.90 (unspecified eye) only when documentation doesn't support a more specific option: right eye (D31.91) and left eye (D31.92).

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 124 (Other Disorders of the Eye with MCC or Thrombolytic Agent, relative weight 1.2471) and DRG 125 (Other Disorders of the Eye without MCC, relative weight 0.7702), in MDC 02 (Diseases and Disorders of the Eye), 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 224.8 (benign neoplasm of other specified parts of eye) and 224.9 (benign neoplasm of eye, part unspecified).