Here are the top 10 most common medical diagnoses by ICD-9 codes billed by hospitals nationwide along with the average charge for each code, according to the American Hospital Directory's analysis of data from the latest Medicare Outpatient Prospective Payment System.
| Diagnosis |
ICD-9 Code | Number of claims |
Average charge |
| Hypertension, unspecified | 401.9 | 1,000,618 |
$708 |
| Chest pain, unspecified |
786.5 | 795,020 | $3,205 |
| Lower back pain | 724.2 |
671,255 | $1,353 |
| Atrial fibrillation |
427.31 | 661,278 |
$1,250 |
| Abdominal pain, unspecified site |
789.0 |
661,273 |
$2,315 |
| Pain in limb |
729.5 |
648,990 | $900 |
| Diabetes mellitus, without mention of complication | 250.0 |
609,917 |
$418 |
| Cough | 786.2 |
551,205 | $543 |
| Malignant neoplasm of prostate |
185 |
527,365 |
$5,096 |
| Anemia, unspecified |
285.9 |
510,670 |
$2,11 |
Source: American Hospital Directory.