COMPLICATIONS MAINLY RELATED TO PREGNANCY (640-649)
Includes:
the listed conditions even if they arose or were present during labor, delivery, or the puerperium
The following fifth-digit subclassification is for use with categories 640-649 to denote the current episode of care:
0 unspecified as to episode of care or not applicable
1 delivered, with or without mention of antepartum condition
Antepartum condition with delivery
Delivery NOS (with mention of antepartum complication during current episode of care)
Intrapartum
obstetric condition (with mention of antepartum complication during current episode of care)
Pregnancy, delivered (with mention of antepartum complication during current episode of care)
2 delivered, with mention of postpartum complication
Delivery with mention of puerperal complication during current episode of care
3 antepartum condition or complication
Antepartum obstetric condition, not delivered during the current episode of care
4 postpartum condition or complication
Postpartum or puerperal obstetric condition or complication following delivery that occurred:
during previous episode of care
outside hospital, with subsequent admission for observation or care
646 Other complications of pregnancy, not elsewhere classified
Use additional code(s) to further specify complication
Requires fifth digit; valid digits are in [brackets] under each code. see beginning of section 640-649 for definitions.
646.0: Papyraceous fetus
[0,1,3]
646.1: Edema or excessive weight gain in pregnancy, without mention of hypertension
[0-4]
Gestational edema
Maternal obesity syndrome
Excludes:
that with mention of hypertension (642.0-642.9)
646.2: Unspecified renal disease in pregnancy, without mention of hypertension
[0-4]
Albuminuria in pregnancy or the puerperium, without mention of hypertension
Nephropathy NOS in pregnancy or the puerperium, without mention of hypertension
Renal disease NOS in pregnancy or the puerperium, without mention of hypertension
Uremia in pregnancy or the puerperium, without mention of hypertension
Gestational proteinuria in pregnancy or the puerperium, without mention of hypertension
Excludes:
that with mention of hypertension (642.0-642.9)
646.3: Recurrent pregnancy loss
[0-1,3]
Excludes:
with current abortion (634.0-634.9)
without current pregnancy (629.81)
646.4: Peripheral neuritis in pregnancy
[0-4]
646.5: Asymptomatic bacteriuria in pregnancy
[0-4]
646.6: Infections of genitourinary tract in pregnancy
[0-4]
Conditions classifiable to 590, 595, 597, 599.0, 616 complicating pregnancy, childbirth, or the puerperium
Conditions classifiable to 614.0-614.5, 614.7-614.9, 615 complicating pregnancy or labor
Excludes:
major puerperal infection (670.0-670.8)
646.7: Liver and biliary tract disorders in pregnancy
[0,1,3]
Acute yellow atrophy of liver (obstetric) (true) of pregnancy
Icterus gravis of pregnancy
Necrosis of liver of pregnancy
Excludes:
hepatorenal syndrome following delivery (674.8)
viral hepatitis (647.6)
646.8: Other specified complications of pregnancy
[0-4]
Fatigue during pregnancy
Herpes gestationis
Insufficient weight gain of pregnancy
646.9: Unspecified complication of pregnancy
[0,1,3]

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