ICD-9-CM diagnosis code (retired)
642.53 — Severe pre-eclampsia, antepartum condition or complication
ICD-9-CM was replaced by ICD-10 on October 1, 2015. These are the ICD-10-CM equivalents from the CMS General Equivalence Mappings.
About ICD-9-CM 642.53
642.53 is an ICD-9-CM diagnosis code for severe pre-eclampsia, 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 4 ICD-10-CM codes, such as O14.12 (Severe pre-eclampsia, second trimester), O14.13 (Severe pre-eclampsia, third trimester) and O14.22 (HELLP syndrome (HELLP), second trimester). All of these are approximate matches, so review the record to pick the right one.
ICD-10-CM equivalents
Common questions about 642.53
GEMs are a translation aid, not a substitute for coding from the record. The 2027 ICD-10 code set has changed since the last GEMs release in 2018. Page updated September 29, 2026.