H33.31Horseshoe tear of retina without detachment

H33.31 is the ICD-10-CM diagnosis code for horseshoe tear of retina without detachment. It belongs to category H33 (retinal detachments and breaks), block H30-H36 (disorders of choroid and retina) and chapter 7 (diseases of the eye and adnexa). It is a header code, so it can't be reported by itself; one of its 4 subcodes must be used instead.

Within H33.3, choose H33.31 (Horseshoe tear of retina without detachment) only when documentation doesn't support a more specific option: unspecified retinal break (H33.30), round hole of retina without detachment (H33.32) and multiple defects of retina without detachment (H33.33).

To report this condition, pick the subcode that matches the documentation: H33.311 (right eye), H33.312 (left eye), H33.313 (bilateral) and H33.319 (unspecified eye).

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