T43.503S

T43.503S: Poisoning by unspecified antipsychotics and neuroleptics, assault, sequela

Billable / specific codeICD-10-CMPOA exempt

T43.503S is a billable, specific ICD-10-CM code for poisoning by unspecified antipsychotics and neuroleptics, assault, sequela. It is valid for submission on a claim.

Check T43.503S with the rest of the claim: free scrubber

7th character "S": sequela

The appropriate 7th character is to be added to each code from category T43

A: initial encounter
D: subsequent encounter
S: sequela

Excludes1 inherited from the categories above T43.503S

A category’s note binds every code beneath it.

Written on T43.5: Poisoning by, adverse effect of and underdosing of other and unspecified antipsychotics and neuroleptics

poisoning by, adverse effect of and underdosing of rauwolfia (T46.5-)

Excludes2 inherited from the categories above T43.503S

Not part of this code, but both may be coded when both are present.

Written on T43: Poisoning by, adverse effect of and underdosing of psychotropic drugs, not elsewhere classified

appetite depressants (T50.5-)
barbiturates (T42.3-)
benzodiazepines (T42.4-)
drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.- -F19.-)
methaqualone (T42.6-)
psychodysleptics [hallucinogens] (T40.7-T40.9-)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

T43.503S is named in 1 Medicare coverage policy: 1 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

A56612Billing and Coding: CT of the Head

Code history

Unchanged in every release from FY2024 to FY2027.