ICD-10 code for lacrimal apparatus atresia

The ICD-10-CM code for lacrimal apparatus atresia is Q10.4 (Absence and agenesis of lacrimal apparatus).

Within Q10 (congenital malformations of eyelid, lacrimal apparatus and orbit), Q10.4 is specifically for absence and agenesis of lacrimal apparatus. Related codes cover congenital ptosis (Q10.0), congenital ectropion (Q10.1), congenital entropion (Q10.2), other congenital malformations of eyelid (Q10.3), congenital stenosis and stricture of lacrimal duct (Q10.5), other congenital malformations of lacrimal apparatus (Q10.6) and congenital malformation of orbit (Q10.7).

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.