diff --git a/StandardizedHealthEconomicsDataTables/PAYER_PLAN_PERIOD.md b/StandardizedHealthEconomicsDataTables/PAYER_PLAN_PERIOD.md
index 8afc419..fa57c93 100644
--- a/StandardizedHealthEconomicsDataTables/PAYER_PLAN_PERIOD.md
+++ b/StandardizedHealthEconomicsDataTables/PAYER_PLAN_PERIOD.md
@@ -2,7 +2,7 @@ The PAYER_PLAN_PERIOD table captures details of the period of time that a Person
 
 Field|Required|Type|Description
 :------------------------------|:--------|:------------|:----------------------------------------------
-|payer_plan_period_id|Yes|integer|A identifier for each unique combination of payer, plan, family code and time span.|
+|payer_plan_period_id|Yes|integer|An identifier for each unique combination of payer, plan, family code and time span.|
 |person_id|Yes|integer|A foreign key identifier to the Person covered by the payer. The demographic details of that Person are stored in the PERSON table.|
 |payer_plan_period_start_date|Yes|date|The start date of the payer plan period.|
 |payer_plan_period_end_date|Yes|date|The end date of the payer plan period.|