National ambulatory medical care survey, 1973
By: principal investigator, United States Department of Health and Human Services, National Center for Health Statistics
Series: ICPSR -- 9192; National ambulatory medical care survey series; ICPSR (Series) -- 9192
Publisher: Inter-university Consortium for Political and Social Research [distributor
Published: 1989
Place of publication: Ann Arbor, Mich
Language: eng
Format: [computer file] /
Subjects: Physician services utilization; Statistics; Ambulatory medical care; Utilization; Medical care surveys; Medical Statistics
Notes: The National Ambulatory Medical Care Survey (NAMCS) provides data on ambulatory medical care rendered in physicians' offices. The NAMCS is a continuous survey based on a sample of patient visits to a national sample of office-based physicians. The survey obtains information on the volume of office visits by age, race, and sex of the patient and by selected physician characteristics such as type of specialty and practice and geographic location. Data describing the clinical substance of the visits include the patient's problem or complaint, prior visit status, referral status, major reason for visit, ethnicity of the patient, physician's diagnosis, diagnostic and therapeutic services provided, disposition, and duration of visit. The patient's problem or complaint is coded according to a revised symptom classification developed specifically for the NAMCS. Prior to 1979, the physician's diagnosis is coded according to the "Eighth Revision of the International Classification of Diseases Adapted for Use in the United States (ICDA)." The "Ninth Revision of the International Classification of Diseases, Clinical Modification (ICD-9-DM)" supplanted the ICDA-8 and was used for coding the physician's diagnosis beginning with the 1979 NAMCS.

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