Icd9cm
icd9cm"Old ICD-9 code for [diagnosis]" / "pre-2015 diagnosis codes" — search legacy ICD-9-CM diagnostic codes. Use ONLY when working with pre-2015 US clinical records; new claims must use icd10cm. Same shape as icd10cm.
Input Schema
| Name | Required | Description | Default |
|---|---|---|---|
| df | No | Comma-separated display fields to use in the `displays` array. Default varies per table; usually the canonical name. | |
| ef | No | Comma-separated extra fields to include per match. Field names vary per table; check NLM docs at clinicaltables.nlm.nih.gov. | |
| count | No | Maximum matches to return. Default 7, max 500. Use 1–3 for typeahead UX, 20–50 for browsing. | |
| terms | Yes | Search query — prefix/contains match against canonical names. Whitespace-split into AND tokens. Example: "asthma". |