The comorbidities of dyslipidemia, hypertension, renal disease, and non-alcohol fatty liver disease were identified during the baseline period based on diagnosis, procedure, and revenue codes appearing on medical claims.
Since this study only paid attention to general acute care hospitals, we considered the DRGs based on diagnosis and procedures to be the ideal tool for risk adjustment.
Previous studies on classifying colonoscopy indication have simply been based on diagnosis and procedure codes in administrative or claims data that indicate the presence or absence of gastrointestinal-related procedures, signs, symptoms or conditions [ 22- 25].
In relation to tertiary or hospital inpatient care, fee-for-service or output-based payments, where the service is defined as a single hospital separation often based on diagnosis or procedure, will also distort service provision.
Second, based on diagnosis and procedure codes, we identified all fall-related claim records.
The diagnosis of SLE and comorbid conditions was determined exclusively based on diagnosis and procedure codes.
Clinical outcomes were based on diagnosis and procedure codes of inpatient and physician Medicare claims.
Furthermore, RRT incidence in the United States in a study based on diagnosis and procedure codes in the Nationwide Inpatient Sample registry was 27 per 100,000 [ 11].
Many health care quality measures have treatment identification strategies based on diagnosis and procedure codes - an approach that is inexpensive and feasible but usually of unknown validity.
11 12 Evidence of renal impairment was identified based on diagnosis codes, procedure codes, and/or revenue codes appearing in the baseline period (including claims for kidney failure, end-stage renal disease or chronic kidney disease).
