1. R03 Abnormal blood-pressure reading, without diagnosis

    1. R03.0 Elevated blood-pressure reading, without diagnosis of hypertension

      Note: This category is to be used to record an episode of elevated blood pressure in a patient in whom no formal diagnosis of hypertension has been made, or as an isolated incidental finding.

    2. R03.1 Nonspecific low blood-pressure reading

Abbreviations used here:

NEC Not elsewhere classifiable
This abbreviation in the Tabular List represents “other specified”. When a specific code is not available for a condition, the Tabular List includes an NEC entry under a code to identify the code as the “other specified” code.

NOS Not otherwise specified
This abbreviation is the equivalent of unspecified.