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Volume 19, Number 2—February 2013


Lymphocytic Choriomeningitis Virus Infections among American Indians

Barbara KnustComments to Author , Robert C. Holman, John Redd, Jason M. Mehal, Steven M. Grube, Adam MacNeil, James Cheek, and Pierre E. Rollin
Author affiliations: Author affiliations: Centers for Disease Control and Prevention, Atlanta, Georgia, USA (B. Knust, R.C. Holman, J.M. Mehal, S.M. Grube, A. MacNeil, P.E. Rollin); Indian Health Service, Albuquerque, New Mexico, USA (J. Redd, J. Cheek)

Main Article


Clinical features and diagnoses for 14 American Indian patients with an ICD-9-CM diagnosis code of 049.0 (lymphocytic choriomeningitis), Southwest and Southern Plains IHS regions, United States, fiscal years, 2001–09*

Patient no. CNS signs and symptoms Lymphocytes in CSF Diagnosis Status
1 Yes Yes Viral meningitis Suspected LCM
2 Yes Yes Lymphocytic meningitis Suspected LCM
3 Yes Yes Lymphocytic meningitis Suspected LCM
4 Yes Yes Lymphocytic meningitis Suspected LCM
5 Yes Yes Tuberculosis meningitis Miscoded
6 Yes No Lyme encephalitis Miscoded
7 No No Lymphocele Miscoded
8 No No Lymphocytic cholitis Miscoded
9 No No Lymphocytic leukemia Miscoded
10 No No Lymphocytic leukemia Miscoded
11 No No Atypical lymphocytes Miscoded
12 No No Reactive lymphocytes Miscoded
13 No No Charcot foot anomaly Miscoded
14 No No Tuberculosis Miscoded

*Diagnosis was the first listed or most clinically relevant written diagnosis from the medical record. Patient status (confirmed or suspected lymphocytic choriomeningitis [LCM] or miscode) was determined by the chart reviewer on the basis of the criteria. ICD-9-CM, International Classification of Diseases, 9th Revision, Clinical Modification; IHS, Indian Health Service; CNS, central nervous system; CSF, cerebrospinal fluid.

Main Article