642.13 — Hypertension secondary to renal disease, complicating pregnancy, childbirth, and the puerperium, antepartum condition or complication

642.13 is an ICD-9-CM diagnosis code for hypertension secondary to renal disease, complicating pregnancy, childbirth, and the puerperium, antepartum condition or complication. ICD-9-CM was retired for U.S. claims on October 1, 2015, when ICD-10-CM took over.

The CMS General Equivalence Mappings translate it to 3 ICD-10-CM codes, such as O10.411 (Pre-existing secondary hypertension complicating pregnancy, first trimester), O10.412 (Pre-existing secondary hypertension complicating pregnancy, second trimester) and O10.413 (Pre-existing secondary hypertension complicating pregnancy, third trimester). All of these are approximate matches, so review the record to pick the right one.