Table 1

ICD-10 codes used to identify patients with HF with or without ID/IDA

HF codes (primary diagnosis)ID/IDA codes (secondary diagnoses)
I11.0 (hypertensive heart disease with (congestive) heart failure)
I25.5 (ischaemic cardiomyopathy)
I42.0 (dilated cardiomyopathy)
I42.9 (cardiomyopathy, unspecified)
I50.0 (congestive heart failure)
I50.1 (left ventricular failure)
I50.9 (heart failure, unspecified)
D500 (IDA secondary to blood loss (chronic))
D508 (other IDA)
D509 (IDA unspecified)
D649 (anaemia unspecified)
  • HF, heart failure; ICD-10, 10th revision of the International Statistical Classification of Diseases and Related Health Problems; ID, iron deficiency; IDA, iron deficiency anaemia.