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The 1st diagnosis code used to identify the patient's reason for the Home Health (HH) encounter record or Hospital Outpatient visit.
For ICD-9 diagnosis codes, this is a 3-5 digit numeric or alpha/numeric value; it can include leading zeros.
On October 1, 2015 the conversion from the 9th version of the International Classification of Diseases (ICD-9-CM) to version 10 (ICD-10-CM) occurred.
Source: Medicare Advantage Organizations (MAOs)
For ICD-9 diagnosis codes, this is a 3-5 digit numeric or alpha/numeric value; it can include leading zeros.
On October 1, 2015 the conversion from the 9th version of the International Classification of Diseases (ICD-9-CM) to version 10 (ICD-10-CM) occurred.
Source: Medicare Advantage Organizations (MAOs)