Cumulative Official WHO Updates to ICD 10 - 1996 - 2001

This means that some headache subtypes are not uniquely coded under the ICD-10NA system but the most appropriate ICD-10NA code has in each case been attached to the ICHD-II code. The basic construct of each chapter in the second edition of The International Classification of Headache Disorders is the same as for the first edition. ................
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