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ICD-9-CM diagnosis code (retired)

642.34 — Transient hypertension of pregnancy, postpartum 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 642.34

642.34 is an ICD-9-CM diagnosis code for transient hypertension of pregnancy, postpartum 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 O13.1 (Gestational [pregnancy-induced] hypertension without significant proteinuria, first trimester), O13.2 (Gestational [pregnancy-induced] hypertension without significant proteinuria, second trimester) and O13.3 (Gestational [pregnancy-induced] hypertension without significant proteinuria, third trimester). All of these are approximate matches, so review the record to pick the right one.

ICD-10-CM equivalents

Common questions about 642.34

What is the ICD-10 code for ICD-9 642.34?

The GEMs map 642.34 to ICD-10-CM O13.1, O13.2, O13.3 and O13.5.

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.