2008 ICD-9-CM Volume 1 Diagnosis Codes Home > Complications Of Pregnancy, Childbirth, And The Puerperium 630-677 > Normal Delivery, And Other Indications For Care In Pregnancy, Labor, And Delivery 650-659 > Other Fetal And Placental Problems Affecting Management Of Mother 656.* >  2008 ICD-9-CM Diagnosis 656.1
Rhesus isoimmunization affecting management of mother 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 Therefore, this code may be out of date.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 656.1 can be accessed here. - The process by which fetal Rh+ erythrocytes enter the circulation of an Rh- mother during delivery, causing her to produce IMMUNOGLOBULIN G antibodies, which can cross the placenta and destroy the erythrocytes of Rh- fetuses in subsequent pregnancies.
- 656.1 is a non-specific code that cannot be used to specify a diagnosis
- 656.1 contains 12 index entries
- View the ICD-9-CM Volume 1 656.* hierarchy
Index entries containing 656.1:- Antibodies
- maternal (blood group) (see also Incompatibility) 656.2
- anti-D, cord blood
 656.1
Immunization- Rh factor
- affecting management of pregnancy 656.1
Immunodeficiency 279.3- to Rh factor
- affecting management of pregnancy 656.1
Incompatibility- Rh (blood group) (factor)
- affecting management of pregnancy 656.1
Pregnancy (single) (uterine) (without sickness) V22.2- complicated (by) 646.9
- Rh immunization, incompatibility, or sensitization 656.1
- management affected by
- antibodies (maternal)
- anti-c 656.1
- anti-d 656.1
- anti-e 656.1
- blood group (ABO) 656.2
- Rh(esus) 656.1
- incompatibility, blood groups (ABO) 656.2
- Rh(esus) 656.1
- isoimmunization (ABO) 656.2
- Rh(esus) 656.1
Rh (factor)- incompatibility, immunization, or sensitization
- affecting management of pregnancy 656.1
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