ICD-9-CM diagnosis code (retired)
642.12 — Hypertension secondary to renal disease, complicating pregnancy, childbirth, and the puerperium, delivered, with mention of postpartum 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 642.12
642.12 is an ICD-9-CM diagnosis code for hypertension secondary to renal disease, complicating pregnancy, childbirth, and the puerperium, delivered, with mention of postpartum 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 one ICD-10-CM code, O10.43 (Pre-existing secondary hypertension complicating the puerperium). The match is approximate, so confirm it against the record.
ICD-10-CM equivalents
- O10.43Pre-existing secondary hypertension complicating the puerperiumapproximate
Common questions about 642.12
What is the ICD-10 code for ICD-9 642.12?
- The GEMs map 642.12 to ICD-10-CM O10.43.
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.