PDGM pays a comorbidity adjustment when a patient carries secondary conditions that make the episode harder to manage. Low adjustment for one qualifying condition, high adjustment for certain interacting pairs. The money is real, and it is routinely missed.
The reason is almost never that the coder does not know the subgroups. It is that the secondary diagnoses were never documented in a place the coder is allowed to use.
Where the information usually is
In our review work, qualifying conditions turn up most often in three places that never made it into the OASIS or the plan of care.
- The hospital discharge summary attached to the referral packet, especially the active problem list
- The medication profile, where a drug clearly implies a condition nobody wrote down
- The clinician's own visit note narrative, describing management of a condition that never got coded
A medication list showing insulin, a statin, and a loop diuretic is telling you something. It is not, on its own, codeable. What it should trigger is a query to the clinician, before the episode is locked.
The fix is a query habit, not a coding rule
Agencies that capture these consistently have one thing in common. Their coders raise queries as a matter of routine and their clinicians answer them quickly, because the query explains why it matters.
A query that says "please confirm active diabetes management" gets answered. A query that says "missing dx" gets ignored.
What to check this month
- Pull ten recent SOC episodes with no comorbidity adjustment
- Read the referral packet and medication list for each one
- Count how many had a qualifying condition available somewhere in the record
If that number is more than two, the gap is process, not knowledge. It is also fixable inside a single quarter.
Gravita Coding Desk · 18 July 2026
