2008 ICD-9-CM Volume 1 Diagnosis Codes Home > Complications Of Pregnancy, Childbirth, And The Puerperium 630-677 > Complications Mainly Related To Pregnancy 640-649 > Hypertension Complicating Pregnancy Childbirth And The Puerperium 642.* > 2008 ICD-9-CM Diagnosis 642.4 Mild or unspecified pre-eclampsia  On October 1, 2008 the 2009 ICD-9-CM codes came into effect. Therefore, this code may be out of date. The 2009 version of ICD-9-CM 642.4 can be accessed here. A complication of PREGNANCY, characterized by a complex of symptoms including maternal HYPERTENSION and PROTEINURIA with or without pathological EDEMA. Symptoms may range between mild and severe. Pre-eclampsia usually occurs after the 20th week of gestation, but may develop before this time in the presence of trophoblastic disease. 642.4 is a non-specific code that cannot be used to specify a diagnosis 642.4 contains 11 index entries View the ICD-9-CM Volume 1 642.* hierarchy ICD9Data's sister site ProcedureCodes.com launches with the 2008/09 CPT® codes - read more on the ICD9Data.com blog. 642.4 excludes: albuminuria in pregnancy, without mention of hypertension (646.2) edema in pregnancy, without mention of hypertension (646.1) Index entries containing 642.4: Albuminuria, albuminuric (acute) (chronic) (subacute) 791.0 pre-eclamptic (mild) 642.4 affecting fetus or newborn 760.0 severe 642.5 affecting fetus or newborn 760.0 Delivery cesarean (for) 669.7 pre-eclampsia 642.4 severe 642.5 Hypertension, hypertensive (arterial) (arteriolar) (crisis) (degeneration) (disease) (essential) (fluctuating) (idiopathic) (intermittent) (labile) (low renin) (orthostatic) (paroxysmal) (primary) (systemic) (uncontrolled) (vascular) 401.0 401.1 401.9 complicating pregnancy, childbirth, or the puerperium 642.2 642.0 642.9 with albuminuria (and edema) (mild) - - 642.4 severe - - 642.5 edema (mild) - - 642.4 severe - - 642.5 Pre-eclampsia (mild) 642.4 with pre-existing hypertension 642.7 affecting fetus or newborn 760.0 severe 642.5 superimposed on pre-existing hypertensive disease 642.7 Pregnancy (single) (uterine) (without sickness) V22.2 complicated (by) 646.9 pre-eclampsia (mild) 642.4 severe 642.5 superimposed on pre-existing hypertensive disease 642.7 Puerperal albuminuria (acute) (subacute) 646.2 pre-eclamptic 642.4 pre-eclampsia (mild) 642.4 with pre-existing hypertension 642.7 severe 642.5 toxemia (see also Toxemia, of pregnancy) 642.4 eclamptic 642.6 with pre-existing hypertension 642.7 pre-eclamptic (mild) 642.4 with convulsions 642.6 pre-existing hypertension 642.7 severe 642.5 Toxemia 799.89 of pregnancy (mild) (pre-eclamptic) 642.4 with convulsions 642.6 pre-existing hypertension 642.7 affecting fetus or newborn 760.0 severe 642.5