T40.996D
T40.996D: Underdosing of other psychodysleptics [hallucinogens], subsequent encounter
Billable / specific codeICD-10-CMPOA exempt
T40.996D is a billable, specific ICD-10-CM code for underdosing of other psychodysleptics [hallucinogens], subsequent encounter. It is valid for submission on a claim.
Check T40.996D with the rest of the claim: free scrubber7th character "D": subsequent encounter
The appropriate 7th character is to be added to each code from category T40
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Excludes2 inherited from the categories above T40.996D
Not part of this code, but both may be coded when both are present.
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Medicare coverage
T40.996D is named in 1 Medicare coverage policy: 1 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.
- A56645Billing and Coding: Controlled Substance Monitoring and Drugs of Abuse Testing
Code history
Unchanged in every release from FY2024 to FY2027.