Personal and family history codes
support the need for screening and
a disease, has the sequelae or residual of a past disease or condition, or has another factor influencing his or her health status.
Since status codes may affect the course of treatment and its
outcome, the codes are used to track public health issues. For
example, the status codes for infection with drug-resistance microorganism are assigned as an additional code for infectious
conditions to indicate the presence of the drug-resistant infectious organism (see “Inpatient, Acute Care—Status Scenario”).
Outpatient Prenatal Visits
In ICD-9-CM a code from category V23, Supervision of high-risk
pregnancy, should be used as the first-listed diagnosis for routine prenatal outpatient visits for patients with high-risk pregnancies unless a pertinent tabular category V23 exclude note
applies. When appropriate, secondary chapter 11 codes may be
reported with category V23 codes.
In contrast, ICD-10-CM does not include Z code prenatal visits for supervision of high-risk pregnancy. Rather, routine prenatal outpatient visits for patients with high-risk pregnancies
are assigned a code from chapter 15, category O09, Supervision
of high-risk pregnancy, as the first-listed diagnosis. ¢
1. Schappert S.M., and E.A. Rechtsteiner. “Ambulatory Medical Care Utilization Estimates for 2007.” Vital and Health
Statistics 13, no. 169 (April 2011). www.cdc.gov/nchs/
Department of Health and Human Services, Centers for
Medicare and Medicaid Services. “The Guide to Medicare
Preventive Services (Fourth Edition).” March 2011. www.
Hazelwood, Anita, and Carol Venable. ICD-10-CM and ICD-
10-PCS Preview, 2d ed. Chicago, IL: AHIMA Press, 2009.
Hing, Esther, Margaret J. Hall, Jill J. Ashman, and Jianmin
Xu. “National Hospital Ambulatory Medical Care Survey:
2007 Outpatient Department Summary.” National Health
Statistics Reports no. 28 (Sept. 23, 2010). www.cdc.gov/nchs/
National Center for Health Statistics. “ICD-10-CM Official
Guidelines for Coding and Reporting.” 2011. www.cdc.gov/
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