AHA Coding Clinic® for ICD-9 - 2008 Issue 4; VOLUMES 1 AND 2 NEW/REVISED CODES

Cervical Shortening

Effective October 1, 2008, code 649.7, Cervical shortening, has been created to identify a cervix that has shortened to less than 25 millimeters in length by the 16th week of pregnancy. Cervical shortening is a warning sign for impending premature delivery (less than 37 weeks gestation) among women who have previously given birth prematurely. Serial evaluations of cervical length by endovaginal sonography in the period between 16-18 weeks, predicts spontaneous preterm birth before 35 weeks gestation in high risk women. The examination should be repeated because of the inability to adequately distinguish the cervix from the lower uterine...

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