ICD-10 code for choroid hereditary dystrophy

The ICD-10-CM code for choroid hereditary dystrophy is H31.20 (Hereditary choroidal dystrophy, unspecified). The official index lists 4 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on H31.20.

Within H31.2, choose H31.20 (unspecified) only when documentation doesn't support a more specific option: Choroideremia (H31.21), choroidal dystrophy (central areolar) (generalized) (peripapillary) (H31.22), Gyrate atrophy, choroid (H31.23) and other hereditary choroidal dystrophy (H31.29).

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.