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Overview

This endpoint provides insights into trending concepts by analyzing search frequency and usage patterns. It identifies concepts that are seeing increased activity over different time periods.

Query Parameters

period
string
default:"week"
Time period for trend analysis
Options: day, week, month
vocabulary_ids
string
Filter trends to specific vocabularies (comma-separated)
Examples: SNOMED, SNOMED,ICD10CM, RXNORM,LOINC
page_size
integer
default:"20"
Maximum number of trending concepts to return (1-1000)
vocab_release
string
Specific vocabulary release version (defaults to latest)

Response

success
boolean
Indicates if the request was successful
data
object
meta
object

Usage Examples

Get trending concepts from the past week:
Focus on trends within specific vocabularies:
Get the most recent daily trends:

Trend Score Calculation

The trend_score is a composite metric calculated from:
  • Search volume (60% weight): Number of searches for the concept in the current period
  • Growth rate (40% weight): Percentage change compared to the previous period of equal length
Higher scores indicate concepts with both high search volume and significant growth.