Research Article
Authentication of Algorithm to Detect Metastases in Men with Prostate Cancer Using ICD-9 Codes
Table 2
Cases where metastases were missed by ICD-9 algorithms but confirmed on chart review.
(a) Cases where metastases were missed by algorithm A (ICD-9 198.5 or 198.3 or 197.0 or 197.7) but confirmed on chart review |
| Patient | ā |
| 40 | Prostascint scan shows equivocal bone metastases; differential includes metastasis versus meningioma. Not biopsied. | 207 | Bone scan and MRI show bone metastases. | 294 | Bone scan and CT scan show bone metastases. |
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(b) Cases where metastases were missed by algorithm B (ICD-9 198.5) but confirmed on chart review |
| Patient | ā |
| 40 | Prostascint scan shows equivocal bone metastases; differential includes metastasis versus meningioma. Not biopsied. | 207 | Bone scan and MRI show bone metastases. | 294 | Bone scan and CT scan show bone metastases. | 3 | MRI shows liver metastases. | 50 | MRI shows bone, brain, and lung metastases. | 164 | CT scan shows metastases to lung pleura. |
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