Which Part of the ICD-9 Code Makes It Most Specific

question 47

Multiple Choice

Which part of the ICD-9 code makes it most specific?

• A) The letter (if any) at the beginning
• B) The first three digits
• C) The first digit after the decimal point
• D) The second digit after the decimal point

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Definitions:

Time Periods

Segments or intervals into which time is divided for the purpose of analysis, observation, or measurement.

Smoothing Constant

A parameter used in exponential smoothing models to apply different weights to past observations, influencing how smooth the resulting time series will be.

Exponentially Smoothed

A technique used in time series analysis to smooth data points by assigning exponentially decreasing weights over time.

Four-period Centered Moving Averages

A technique used to smooth out data series to identify the underlying trend, calculated by averaging each set of four consecutive data points.