diff --git a/docs/api/covidcast-signals/chng.md b/docs/api/covidcast-signals/chng.md
index cc9fb89e4..1a9ebafd0 100644
--- a/docs/api/covidcast-signals/chng.md
+++ b/docs/api/covidcast-signals/chng.md
@@ -29,6 +29,8 @@ commercial purposes.
| Signal | Description |
| --- | --- |
+| `7dav_inpatient_covid` | Ratio of inpatient hospitalizations associated with COVID-19, based on Change Healthcare claims data that has been de-identified in accordance with HIPAA privacy regulations, smoothed in time with a trailing 7 day average. This historical signal is no longer updated.
**Earliest date available:** 2020-01-01 |
+| `7dav_outpatient_covid` | Ratio of outpatient doctor visits with confirmed COVID-19, based on Change Healthcare claims data that has been de-identified in accordance with HIPAA privacy regulations, smoothed in time with a trailing 7 day average. This historical signal is no longer updated.
**Earliest date available:** 2020-01-01 |
| `smoothed_outpatient_covid` | Estimated percentage of outpatient doctor visits with confirmed COVID-19, based on Change Healthcare claims data that has been de-identified in accordance with HIPAA privacy regulations, smoothed in time using a Gaussian linear smoother
**Earliest date available:** 2020-02-01 |
| `smoothed_adj_outpatient_covid` | Same, but with systematic day-of-week effects removed; see [details below](#day-of-week-adjustment)
**Earliest date available:** 2020-02-01 |
| `smoothed_outpatient_cli` | Estimated percentage of outpatient doctor visits primarily about COVID-related symptoms, based on Change Healthcare claims data that has been de-identified in accordance with HIPAA privacy regulations, smoothed in time using a Gaussian linear smoother
**Earliest date available:** 2020-02-01 |