2021 ICD-10-CM Codes for Antiepileptic, sedative- hypnotic and antiparkinsonism drugs (T42)

Instructional Notations

Type 2 Excludes Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.

  • drug dependence and related mental and behavioral disorders due to psychoactive substance use F10 F19

7th Character Note 7th Character Note
Certain ICD-10-CM categories have applicable 7th characters. The applicable 7th character is required for all codes within the category, or as the notes in the Tabular List instruct. The 7th character must always be the 7th character in the data field. If a code that requires a 7th character is not 6 characters, a placeholder X must be used to fill in the empty characters.

  • The appropriate 7th character is to be added to each code from category T42

7th Character 7th Character
Indicates that a seventh character is to be assigned to codes in a subcategory.

  • A - initial encounter
  • D - subsequent encounter
  • S - sequela
    • ICD-10 Index

      • Injury, poisoning and certain other consequences of external causes (S00–T98)

        • Poisoning by, adverse effect of and underdosing of drugs, medicaments and biological substances (T36-T50)

            • Antiepileptic, sedative- hypnotic and antiparkinsonism drugs (T42)
            • T42 - Antiepileptic, sedative- hypnotic and antiparkinsonism drugs NON-BILLABLE CODE
            • T42.0 - Hydantoin derivatives NON-BILLABLE CODE
            • T42.0X - Hydantoin derivatives NON-BILLABLE CODE
            • T42.0X1 - Poisoning by hydantoin derivatives, accidental NON-BILLABLE CODE
            • T42.0X1A - Poisoning by hydantoin derivatives, accidental, init BILLABLE CODE
            • T42.0X1D - Poisoning by hydantoin derivatives, accidental, subs BILLABLE CODE
            • T42.0X1S - Poisoning by hydantoin derivatives, accidental, sequela BILLABLE CODE
            • T42.0X2 - Poisoning by hydantoin derivatives, intentional self-harm NON-BILLABLE CODE
            • T42.0X2A - Poisoning by hydantoin derivatives, self-harm, init BILLABLE CODE
            • T42.0X2D - Poisoning by hydantoin derivatives, self-harm, subs BILLABLE CODE
            • T42.0X2S - Poisoning by hydantoin derivatives, self-harm, sequela BILLABLE CODE
            • T42.0X3 - Poisoning by hydantoin derivatives, assault NON-BILLABLE CODE
            • T42.0X3A - Poisoning by hydantoin derivatives, assault, init encntr BILLABLE CODE
            • T42.0X3D - Poisoning by hydantoin derivatives, assault, subs encntr BILLABLE CODE
            • T42.0X3S - Poisoning by hydantoin derivatives, assault, sequela BILLABLE CODE
            • T42.0X4 - Poisoning by hydantoin derivatives, undetermined NON-BILLABLE CODE
            • T42.0X4A - Poisoning by hydantoin derivatives, undetermined, init BILLABLE CODE
            • T42.0X4D - Poisoning by hydantoin derivatives, undetermined, subs BILLABLE CODE
            • T42.0X4S - Poisoning by hydantoin derivatives, undetermined, sequela BILLABLE CODE
            • T42.0X5 - Adverse effect of hydantoin derivatives NON-BILLABLE CODE
            • T42.0X5A - Adverse effect of hydantoin derivatives, initial encounter BILLABLE CODE
            • T42.0X5D - Adverse effect of hydantoin derivatives, subs encntr BILLABLE CODE
            • T42.0X5S - Adverse effect of hydantoin derivatives, sequela BILLABLE CODE
            • T42.0X6 - Underdosing of hydantoin derivatives NON-BILLABLE CODE
            • T42.0X6A - Underdosing of hydantoin derivatives, initial encounter BILLABLE CODE
            • T42.0X6D - Underdosing of hydantoin derivatives, subsequent encounter BILLABLE CODE
            • T42.0X6S - Underdosing of hydantoin derivatives, sequela BILLABLE CODE
            • T42.1 - Iminostilbenes NON-BILLABLE CODE
            • T42.1X - Iminostilbenes NON-BILLABLE CODE
            • T42.1X1 - Poisoning by iminostilbenes, accidental (unintentional) NON-BILLABLE CODE
            • T42.1X1A - Poisoning by iminostilbenes, accidental, init BILLABLE CODE
            • T42.1X1D - Poisoning by iminostilbenes, accidental, subs BILLABLE CODE
            • T42.1X1S - Poisoning by iminostilbenes, accidental, sequela BILLABLE CODE
            • T42.1X2 - Poisoning by iminostilbenes, intentional self-harm NON-BILLABLE CODE
            • T42.1X2A - Poisoning by iminostilbenes, intentional self-harm, init BILLABLE CODE
            • T42.1X2D - Poisoning by iminostilbenes, intentional self-harm, subs BILLABLE CODE
            • T42.1X2S - Poisoning by iminostilbenes, intentional self-harm, sequela BILLABLE CODE
            • T42.1X3 - Poisoning by iminostilbenes, assault NON-BILLABLE CODE
            • T42.1X3A - Poisoning by iminostilbenes, assault, initial encounter BILLABLE CODE
            • T42.1X3D - Poisoning by iminostilbenes, assault, subsequent encounter BILLABLE CODE
            • T42.1X3S - Poisoning by iminostilbenes, assault, sequela BILLABLE CODE
            • T42.1X4 - Poisoning by iminostilbenes, undetermined NON-BILLABLE CODE
            • T42.1X4A - Poisoning by iminostilbenes, undetermined, initial encounter BILLABLE CODE
            • T42.1X4D - Poisoning by iminostilbenes, undetermined, subs encntr BILLABLE CODE
            • T42.1X4S - Poisoning by iminostilbenes, undetermined, sequela BILLABLE CODE
            • T42.1X5 - Adverse effect of iminostilbenes NON-BILLABLE CODE
            • T42.1X5A - Adverse effect of iminostilbenes, initial encounter BILLABLE CODE
            • T42.1X5D - Adverse effect of iminostilbenes, subsequent encounter BILLABLE CODE
            • T42.1X5S - Adverse effect of iminostilbenes, sequela BILLABLE CODE
            • T42.1X6 - Underdosing of iminostilbenes NON-BILLABLE CODE
            • T42.1X6A - Underdosing of iminostilbenes, initial encounter BILLABLE CODE
            • T42.1X6D - Underdosing of iminostilbenes, subsequent encounter BILLABLE CODE
            • T42.1X6S - Underdosing of iminostilbenes, sequela BILLABLE CODE
            • T42.2 - Succinimides and oxazolidinediones NON-BILLABLE CODE
            • T42.2X - Succinimides and oxazolidinediones NON-BILLABLE CODE
            • T42.2X1 - Poisoning by succinimides and oxazolidinediones, accidental NON-BILLABLE CODE
            • T42.2X1A - Poisoning by succinimides and oxazolidinediones, acc, init BILLABLE CODE
            • T42.2X1D - Poisoning by succinimides and oxazolidinediones, acc, subs BILLABLE CODE
            • T42.2X1S - Poisn by succinimides and oxazolidinediones, acc, sequela BILLABLE CODE
            • T42.2X2 - Poisoning by succinimides and oxazolidinediones, self-harm NON-BILLABLE CODE
            • T42.2X2A - Poisn by succinimides and oxazolidinediones, self-harm, init BILLABLE CODE
            • T42.2X2D - Poisn by succinimides and oxazolidinediones, self-harm, subs BILLABLE CODE
            • T42.2X2S - Poisn by succinimides and oxazolidinediones, slf-hrm, sqla BILLABLE CODE
            • T42.2X3 - Poisoning by succinimides and oxazolidinediones, assault NON-BILLABLE CODE
            • T42.2X3A - Poisn by succinimides and oxazolidinediones, assault, init BILLABLE CODE
            • T42.2X3D - Poisn by succinimides and oxazolidinediones, assault, subs BILLABLE CODE
            • T42.2X3S - Poisn by succinimides and oxazolidinediones, asslt, sequela BILLABLE CODE
            • T42.2X4 - Poisoning by succinimides and oxazolidinediones, undet NON-BILLABLE CODE
            • T42.2X4A - Poisoning by succinimides and oxazolidinediones, undet, init BILLABLE CODE
            • T42.2X4D - Poisoning by succinimides and oxazolidinediones, undet, subs BILLABLE CODE
            • T42.2X4S - Poisn by succinimides and oxazolidinediones, undet, sequela BILLABLE CODE
            • T42.2X5 - Adverse effect of succinimides and oxazolidinediones NON-BILLABLE CODE
            • T42.2X5A - Adverse effect of succinimides and oxazolidinediones, init BILLABLE CODE
            • T42.2X5D - Adverse effect of succinimides and oxazolidinediones, subs BILLABLE CODE
            • T42.2X5S - Advrs effect of succinimides and oxazolidinediones, sequela BILLABLE CODE
            • T42.2X6 - Underdosing of succinimides and oxazolidinediones NON-BILLABLE CODE
            • T42.2X6A - Underdosing of succinimides and oxazolidinediones, init BILLABLE CODE
            • T42.2X6D - Underdosing of succinimides and oxazolidinediones, subs BILLABLE CODE
            • T42.2X6S - Underdosing of succinimides and oxazolidinediones, sequela BILLABLE CODE
            • T42.3 - Barbiturates NON-BILLABLE CODE
            • T42.3X - Barbiturates NON-BILLABLE CODE
            • T42.3X1 - Poisoning by barbiturates, accidental (unintentional) NON-BILLABLE CODE
            • T42.3X1A - Poisoning by barbiturates, accidental (unintentional), init BILLABLE CODE
            • T42.3X1D - Poisoning by barbiturates, accidental (unintentional), subs BILLABLE CODE
            • T42.3X1S - Poisoning by barbiturates, accidental, sequela BILLABLE CODE
            • T42.3X2 - Poisoning by barbiturates, intentional self-harm NON-BILLABLE CODE
            • T42.3X2A - Poisoning by barbiturates, intentional self-harm, init BILLABLE CODE
            • T42.3X2D - Poisoning by barbiturates, intentional self-harm, subs BILLABLE CODE
            • T42.3X2S - Poisoning by barbiturates, intentional self-harm, sequela BILLABLE CODE
            • T42.3X3 - Poisoning by barbiturates, assault NON-BILLABLE CODE
            • T42.3X3A - Poisoning by barbiturates, assault, initial encounter BILLABLE CODE
            • T42.3X3D - Poisoning by barbiturates, assault, subsequent encounter BILLABLE CODE
            • T42.3X3S - Poisoning by barbiturates, assault, sequela BILLABLE CODE
            • T42.3X4 - Poisoning by barbiturates, undetermined NON-BILLABLE CODE
            • T42.3X4A - Poisoning by barbiturates, undetermined, initial encounter BILLABLE CODE
            • T42.3X4D - Poisoning by barbiturates, undetermined, subs encntr BILLABLE CODE
            • T42.3X4S - Poisoning by barbiturates, undetermined, sequela BILLABLE CODE
            • T42.3X5 - Adverse effect of barbiturates NON-BILLABLE CODE
            • T42.3X5A - Adverse effect of barbiturates, initial encounter BILLABLE CODE
            • T42.3X5D - Adverse effect of barbiturates, subsequent encounter BILLABLE CODE
            • T42.3X5S - Adverse effect of barbiturates, sequela BILLABLE CODE
            • T42.3X6 - Underdosing of barbiturates NON-BILLABLE CODE
            • T42.3X6A - Underdosing of barbiturates, initial encounter BILLABLE CODE
            • T42.3X6D - Underdosing of barbiturates, subsequent encounter BILLABLE CODE
            • T42.3X6S - Underdosing of barbiturates, sequela BILLABLE CODE
            • T42.4 - Benzodiazepines NON-BILLABLE CODE
            • T42.4X - Benzodiazepines NON-BILLABLE CODE
            • T42.4X1 - Poisoning by benzodiazepines, accidental (unintentional) NON-BILLABLE CODE
            • T42.4X1A - Poisoning by benzodiazepines, accidental, init BILLABLE CODE
            • T42.4X1D - Poisoning by benzodiazepines, accidental, subs BILLABLE CODE
            • T42.4X1S - Poisoning by benzodiazepines, accidental, sequela BILLABLE CODE
            • T42.4X2 - Poisoning by benzodiazepines, intentional self-harm NON-BILLABLE CODE
            • T42.4X2A - Poisoning by benzodiazepines, intentional self-harm, init BILLABLE CODE
            • T42.4X2D - Poisoning by benzodiazepines, intentional self-harm, subs BILLABLE CODE
            • T42.4X2S - Poisoning by benzodiazepines, intentional self-harm, sequela BILLABLE CODE
            • T42.4X3 - Poisoning by benzodiazepines, assault NON-BILLABLE CODE
            • T42.4X3A - Poisoning by benzodiazepines, assault, initial encounter BILLABLE CODE
            • T42.4X3D - Poisoning by benzodiazepines, assault, subsequent encounter BILLABLE CODE
            • T42.4X3S - Poisoning by benzodiazepines, assault, sequela BILLABLE CODE
            • T42.4X4 - Poisoning by benzodiazepines, undetermined NON-BILLABLE CODE
            • T42.4X4A - Poisoning by benzodiazepines, undetermined, init encntr BILLABLE CODE
            • T42.4X4D - Poisoning by benzodiazepines, undetermined, subs encntr BILLABLE CODE
            • T42.4X4S - Poisoning by benzodiazepines, undetermined, sequela BILLABLE CODE
            • T42.4X5 - Adverse effect of benzodiazepines NON-BILLABLE CODE
            • T42.4X5A - Adverse effect of benzodiazepines, initial encounter BILLABLE CODE
            • T42.4X5D - Adverse effect of benzodiazepines, subsequent encounter BILLABLE CODE
            • T42.4X5S - Adverse effect of benzodiazepines, sequela BILLABLE CODE
            • T42.4X6 - Underdosing of benzodiazepines NON-BILLABLE CODE
            • T42.4X6A - Underdosing of benzodiazepines, initial encounter BILLABLE CODE
            • T42.4X6D - Underdosing of benzodiazepines, subsequent encounter BILLABLE CODE
            • T42.4X6S - Underdosing of benzodiazepines, sequela BILLABLE CODE
            • T42.5 - Mixed antiepileptics NON-BILLABLE CODE
            • T42.5X - Antiepileptics NON-BILLABLE CODE
            • T42.5X1 - Poisoning by mixed antiepileptics, accidental NON-BILLABLE CODE
            • T42.5X1A - Poisoning by mixed antiepileptics, accidental, init BILLABLE CODE
            • T42.5X1D - Poisoning by mixed antiepileptics, accidental, subs BILLABLE CODE
            • T42.5X1S - Poisoning by mixed antiepileptics, accidental, sequela BILLABLE CODE
            • T42.5X2 - Poisoning by mixed antiepileptics, intentional self-harm NON-BILLABLE CODE
            • T42.5X2A - Poisoning by mixed antiepileptics, self-harm, init BILLABLE CODE
            • T42.5X2D - Poisoning by mixed antiepileptics, self-harm, subs BILLABLE CODE
            • T42.5X2S - Poisoning by mixed antiepileptics, self-harm, sequela BILLABLE CODE
            • T42.5X3 - Poisoning by mixed antiepileptics, assault NON-BILLABLE CODE
            • T42.5X3A - Poisoning by mixed antiepileptics, assault, init encntr BILLABLE CODE
            • T42.5X3D - Poisoning by mixed antiepileptics, assault, subs encntr BILLABLE CODE
            • T42.5X3S - Poisoning by mixed antiepileptics, assault, sequela BILLABLE CODE
            • T42.5X4 - Poisoning by mixed antiepileptics, undetermined NON-BILLABLE CODE
            • T42.5X4A - Poisoning by mixed antiepileptics, undetermined, init encntr BILLABLE CODE
            • T42.5X4D - Poisoning by mixed antiepileptics, undetermined, subs encntr BILLABLE CODE
            • T42.5X4S - Poisoning by mixed antiepileptics, undetermined, sequela BILLABLE CODE
            • T42.5X5 - Adverse effect of mixed antiepileptics NON-BILLABLE CODE
            • T42.5X5A - Adverse effect of mixed antiepileptics, initial encounter BILLABLE CODE
            • T42.5X5D - Adverse effect of mixed antiepileptics, subsequent encounter BILLABLE CODE
            • T42.5X5S - Adverse effect of mixed antiepileptics, sequela BILLABLE CODE
            • T42.5X6 - Underdosing of mixed antiepileptics NON-BILLABLE CODE
            • T42.5X6A - Underdosing of mixed antiepileptics, initial encounter BILLABLE CODE
            • T42.5X6D - Underdosing of mixed antiepileptics, subsequent encounter BILLABLE CODE
            • T42.5X6S - Underdosing of mixed antiepileptics, sequela BILLABLE CODE
            • T42.6 - Antiepileptic and sedative-hypnotic drugs NON-BILLABLE CODE
            • T42.6X - Antiepileptic and sedative-hypnotic drugs NON-BILLABLE CODE
            • T42.6X1 - Poisoning by oth antieplptc and sed-hypntc drugs, acc NON-BILLABLE CODE
            • T42.6X1A - Poisoning by oth antieplptc and sed-hypntc drugs, acc, init BILLABLE CODE
            • T42.6X1D - Poisoning by oth antieplptc and sed-hypntc drugs, acc, subs BILLABLE CODE
            • T42.6X1S - Poisn by oth antieplptc and sed-hypntc drugs, acc, sequela BILLABLE CODE
            • T42.6X2 - Poisoning by oth antieplptc and sed-hypntc drugs, self-harm NON-BILLABLE CODE
            • T42.6X2A - Poisn by oth antieplptc and sed-hypntc drugs, slf-hrm, init BILLABLE CODE
            • T42.6X2D - Poisn by oth antieplptc and sed-hypntc drugs, slf-hrm, subs BILLABLE CODE
            • T42.6X2S - Poisn by oth antieplptc and sed-hypntc drugs, slf-hrm, sqla BILLABLE CODE
            • T42.6X3 - Poisoning by oth antiepileptic and sed-hypntc drugs, assault NON-BILLABLE CODE
            • T42.6X3A - Poisn by oth antieplptc and sed-hypntc drugs, assault, init BILLABLE CODE
            • T42.6X3D - Poisn by oth antieplptc and sed-hypntc drugs, assault, subs BILLABLE CODE
            • T42.6X3S - Poisn by oth antieplptc and sed-hypntc drugs, asslt, sequela BILLABLE CODE
            • T42.6X4 - Poisoning by oth antieplptc and sed-hypntc drugs, undet NON-BILLABLE CODE
            • T42.6X4A - Poisn by oth antieplptc and sed-hypntc drugs, undet, init BILLABLE CODE
            • T42.6X4D - Poisn by oth antieplptc and sed-hypntc drugs, undet, subs BILLABLE CODE
            • T42.6X4S - Poisn by oth antieplptc and sed-hypntc drugs, undet, sequela BILLABLE CODE
            • T42.6X5 - Adverse effect of antiepileptic and sedative-hypnotic drugs NON-BILLABLE CODE
            • T42.6X5A - Adverse effect of antiepileptic and sed-hypntc drugs, init BILLABLE CODE
            • T42.6X5D - Adverse effect of antiepileptic and sed-hypntc drugs, subs BILLABLE CODE
            • T42.6X5S - Adverse effect of antieplptc and sed-hypntc drugs, sequela BILLABLE CODE
            • T42.6X6 - Underdosing of oth antiepileptic and sedative-hypnotic drugs NON-BILLABLE CODE
            • T42.6X6A - Underdosing of antiepileptic and sed-hypntc drugs, init BILLABLE CODE
            • T42.6X6D - Underdosing of antiepileptic and sed-hypntc drugs, subs BILLABLE CODE
            • T42.6X6S - Underdosing of antiepileptic and sed-hypntc drugs, sequela BILLABLE CODE
            • T42.7 - Unsp antiepileptic and sedative-hypnotic drugs NON-BILLABLE CODE
            • T42.71 - Poisoning by unsp antieplptc and sed-hypntc drugs, acc NON-BILLABLE CODE
            • T42.71XA - Poisn by unsp antieplptc and sed-hypntc drugs, acc, init BILLABLE CODE
            • T42.71XD - Poisn by unsp antieplptc and sed-hypntc drugs, acc, subs BILLABLE CODE
            • T42.71XS - Poisn by unsp antieplptc and sed-hypntc drugs, acc, sequela BILLABLE CODE
            • T42.72 - Poisoning by unsp antieplptc and sed-hypntc drugs, self-harm NON-BILLABLE CODE
            • T42.72XA - Poisn by unsp antieplptc and sed-hypntc drugs, slf-hrm, init BILLABLE CODE
            • T42.72XD - Poisn by unsp antieplptc and sed-hypntc drugs, slf-hrm, subs BILLABLE CODE
            • T42.72XS - Poisn by unsp antieplptc and sed-hypntc drugs, slf-hrm, sqla BILLABLE CODE
            • T42.73 - Poisoning by unsp antieplptc and sed-hypntc drugs, assault NON-BILLABLE CODE
            • T42.73XA - Poisn by unsp antieplptc and sed-hypntc drugs, assault, init BILLABLE CODE
            • T42.73XD - Poisn by unsp antieplptc and sed-hypntc drugs, assault, subs BILLABLE CODE
            • T42.73XS - Poisn by unsp antieplptc and sed-hypntc drugs, asslt, sqla BILLABLE CODE
            • T42.74 - Poisoning by unsp antieplptc and sed-hypntc drugs, undet NON-BILLABLE CODE
            • T42.74XA - Poisn by unsp antieplptc and sed-hypntc drugs, undet, init BILLABLE CODE
            • T42.74XD - Poisn by unsp antieplptc and sed-hypntc drugs, undet, subs BILLABLE CODE
            • T42.74XS - Poisn by unsp antieplptc and sed-hypntc drugs, undet, sqla BILLABLE CODE
            • T42.75 - Adverse effect of unsp antiepileptic and sed-hypntc drugs NON-BILLABLE CODE
            • T42.75XA - Adverse effect of unsp antieplptc and sed-hypntc drugs, init BILLABLE CODE
            • T42.75XD - Adverse effect of unsp antieplptc and sed-hypntc drugs, subs BILLABLE CODE
            • T42.75XS - Advrs effect of unsp antieplptc and sed-hypntc drugs, sqla BILLABLE CODE
            • T42.76 - Underdosing of unsp antiepileptic and sed-hypntc drugs NON-BILLABLE CODE
            • T42.76XA - Underdosing of unsp antiepileptic and sed-hypntc drugs, init BILLABLE CODE
            • T42.76XD - Underdosing of unsp antiepileptic and sed-hypntc drugs, subs BILLABLE CODE
            • T42.76XS - Underdosing of unsp antieplptc and sed-hypntc drugs, sequela BILLABLE CODE
            • T42.8 - Antiparkns drug/centr muscle-tone depressants NON-BILLABLE CODE
            • T42.8X - Antiparkns drug/centr muscle-tone depressants NON-BILLABLE CODE
            • T42.8X1 - Poisoning by antiparkns drug/centr musc-tone depr, acc NON-BILLABLE CODE
            • T42.8X1A - Poisn by antiparkns drug/centr musc-tone depr, acc, init BILLABLE CODE
            • T42.8X1D - Poisn by antiparkns drug/centr musc-tone depr, acc, subs BILLABLE CODE
            • T42.8X1S - Poisn by antiparkns drug/centr musc-tone depr, acc, sequela BILLABLE CODE
            • T42.8X2 - Poisoning by antiparkns drug/centr musc-tone depr, self-harm NON-BILLABLE CODE
            • T42.8X2A - Poisn by antiparkns drug/centr musc-tone depr, slf-hrm, init BILLABLE CODE
            • T42.8X2D - Poisn by antiparkns drug/centr musc-tone depr, slf-hrm, subs BILLABLE CODE
            • T42.8X2S - Poisn by antiparkns drug/centr musc-tone depr, slf-hrm, sqla BILLABLE CODE
            • T42.8X3 - Poisoning by antiparkns drug/centr muscle-tone depr, assault NON-BILLABLE CODE
            • T42.8X3A - Poisn by antiparkns drug/centr musc-tone depr, assault, init BILLABLE CODE
            • T42.8X3D - Poisn by antiparkns drug/centr musc-tone depr, assault, subs BILLABLE CODE
            • T42.8X3S - Poisn by antiparkns drug/centr musc-tone depr, asslt, sqla BILLABLE CODE
            • T42.8X4 - Poisoning by antiparkns drug/centr muscle-tone depr, undet NON-BILLABLE CODE
            • T42.8X4A - Poisn by antiparkns drug/centr musc-tone depr, undet, init BILLABLE CODE
            • T42.8X4D - Poisn by antiparkns drug/centr musc-tone depr, undet, subs BILLABLE CODE
            • T42.8X4S - Poisn by antiparkns drug/centr musc-tone depr, undet, sqla BILLABLE CODE
            • T42.8X5 - Adverse effect of antiparkns drug/centr muscle-tone depr NON-BILLABLE CODE
            • T42.8X5A - Adverse effect of antiparkns drug/centr musc-tone depr, init BILLABLE CODE
            • T42.8X5D - Adverse effect of antiparkns drug/centr musc-tone depr, subs BILLABLE CODE
            • T42.8X5S - Advrs effect of antiparkns drug/centr musc-tone depr, sqla BILLABLE CODE
            • T42.8X6 - Underdosing of antiparkns drug/centr muscle-tone depressants NON-BILLABLE CODE
            • T42.8X6A - Underdosing of antiparkns drug/centr muscle-tone depr, init BILLABLE CODE
            • T42.8X6D - Underdosing of antiparkns drug/centr muscle-tone depr, subs BILLABLE CODE
            • T42.8X6S - Underdosing of antiparkns drug/centr musc-tone depr, sequela BILLABLE CODE