ICD-9-CM Vol. 1 Diagnostic Codes →
7. DISEASES OF THE CIRCULATORY SYSTEM (390-459) →
section notes
HYPERTENSIVE DISEASE (401-405) →
section notes
402 Hypertensive heart disease →
section notes
402.9 Unspecified hypertensive heart disease; →
section notes
402.90   Hyp hrt dis NOS w/o hf
402.91   Hyp ht dis NOS w ht fail
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