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 > Late Pregnancy 645.* >  2008 ICD-9-CM Diagnosis 645.1
Post term pregnancy 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 Therefore, this code may be out of date.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 645.1 can be accessed here. - A term used to describe pregnancies that exceed the upper limit of a normal gestational period. In humans, a prolonged pregnancy is defined as one that extends beyond 42 weeks (294 days) after the first day of the last menstrual period (MENSTRUATION), or birth with gestational age of 41 weeks or more.
- 645.1 is a non-specific code that cannot be used to specify a diagnosis
- 645.1 contains 7 index entries
- View the ICD-9-CM Volume 1 645.* hierarchy
Index entries containing 645.1:- Postmaturity, postmature (fetus or newborn) (gestation period over 42 completed weeks) 766.22
- affecting management of pregnancy
- post-term pregnancy
 645.1
Post-term (pregnancy) 645.1- infant (gestation period over 40 completed weeks to 42 completed weeks) 766.21
Pregnancy (single) (uterine) (without sickness) V22.2- complicated (by) 646.9
- postmaturity
- post-term 645.1
- management affected by
- postmaturity
- post-term 645.1
- post-term pregnancy 645.1
- postmature
- post-term 645.1
- post-term 645.1
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