Each month, IBC will feature an example of how ICD-9 codes will translate to
ICD-10 codes. We will present coding examples from different specialties and
popular disease categories to demonstrate the granularity that the new ICD-10
code set will provide.
CODING CONVENTION: CLINICAL TERMINOLOGY CHANGES IN
ICD-10
These coding examples will demonstrate the new clinical terminology changes
conveyed in ICD-10. These changes reflect standardization of the terms that are
used today.
Several terminologies used in ICD-9 have been changed in ICD-10. Some of the
names and definitions of disorders have been updated in ICD-10 to reflect more
current clinical terminology and standardization of the terms used to diagnose
certain conditions and disorders. These changes reflect standardized
terminology that clinicians and health care personnel use today for patient
care and data reporting.
Although not completely eliminated, commonly used terms such as ?senile?, are
no longer used for certain conditions. Another differentiation involves acute
myocardial infarction (AMI). This condition not only includes updated
terminology, it also has notable definition changes in ICD-10.
ICD-9
ICD-10
Senile------------------------------------------------> Age-related
Intermediate coronary syndrome ------------>Unstable angina
Acute myocardial infarction -------------------->ST elevation (STEMI) or non-ST
elevation (NSTEMI) myocardial infarction
ICD-9: Clinical terminology
ICD-10: Clinical terminology
Senile cataract
Age-related cataract
366.10 Unspecified senile cataract
H25.9 Unspecified age-related cataract
Intermediate coronary syndrome
Unstable angina
411.1 Intermediate coronary syndrome
I20.0 Unstable angina
Acute myocardial infarction*
ST elevation (STEMI) or non-ST elevation (NSTEMI)
myocardial infarction
410.02 Acute myocardial infarction of anterolateral wall,
subsequent episode of care
I21.09 ST elevation (STEMI) myocardial infarction
involving other coronary artery of anterior wall
410.70 Acute myocardial infarction, subendocardial
infarction, episode of care unspecified
I21.4 Non-ST elevation (NSTEMI) myocardial infarction
*In ICD-9-CM, the initial time frame for acute
myocardial infarction (AMI) treatment is within eight weeks of onset. In
ICD-10-CM, the initial time frame for acute treatment is within four weeks of
onset.
A complete list of all ICD-10 coding examples featured to date can be found
here:
ICD-10 Spotlight: Know the Codes booklet. For additional
information related to the IBC transition to ICD-10, please visit the
ICD-10 section of our website.