ICD-10 · PDGM grouping
T49 Poisoning by, adverse effect of and underdosing of topical agents primarily affecting skin and mucous membrane and by ophthalmological, otorhinorlaryngological and dental drugs
All 180 codes in the T49 family, with the PDGM clinical group, comorbidity subgroup and primary-position rule CMS assigns, read from the CMS grouper crosswalk v07.2.26 and the CDC FY2027 code file.
ICD-10-CM FY2027 · CMS grouper v07.2.26
Codes in family
180
Can lead a claim
120
Cannot lead a claim
60
What CMS assigns to T49
120 of the 180 codes group to MMTA - Other; 60 are assigned no clinical group. None of the 180 is assigned a comorbidity subgroup. 120 of the 180 can lead a claim.
Every code in T49
Descriptions are CDC’s FY2027 wording; where CMS’s grouper abbreviates one, its form is shown beneath.
| Code | Description | Primary position | Clinical group | Comorbidity subgroup |
|---|---|---|---|---|
| T49.0 Poisoning by, adverse effect of and underdosing of local antifungal, anti-infective and anti-inflammatory drugs | ||||
| T49.0X Poisoning by, adverse effect of and underdosing of local antifungal, anti-infective and anti-inflammatory drugs | ||||
| T49.0X1 Poisoning by local antifungal, anti-infective and anti-inflammatory drugs, accidental (unintentional) | ||||
| T49.0X1A | Poisoning by local antifungal, anti-infective and anti-inflammatory drugs, accidental (unintentional), initial encounterCMS: Poisoning by local antifung/infect/inflamm drugs, acc, init | Can lead a claim | A | None |
| T49.0X1D | Poisoning by local antifungal, anti-infective and anti-inflammatory drugs, accidental (unintentional), subsequent encounterCMS: Poisoning by local antifung/infect/inflamm drugs, acc, subs | Can lead a claim | A | None |
| T49.0X1S | Poisoning by local antifungal, anti-infective and anti-inflammatory drugs, accidental (unintentional), sequelaCMS: Poisn by local antifung/infect/inflamm drugs, acc, sequela | Can lead a claim | A | None |
| T49.0X2 Poisoning by local antifungal, anti-infective and anti-inflammatory drugs, intentional self-harm | ||||
| T49.0X2A | Poisoning by local antifungal, anti-infective and anti-inflammatory drugs, intentional self-harm, initial encounterCMS: Poisn by local antifung/infect/inflamm drugs, slf-hrm, init | Can lead a claim | A | None |
| T49.0X2D | Poisoning by local antifungal, anti-infective and anti-inflammatory drugs, intentional self-harm, subsequent encounterCMS: Poisn by local antifung/infect/inflamm drugs, slf-hrm, subs | Can lead a claim | A | None |
| T49.0X2S | Poisoning by local antifungal, anti-infective and anti-inflammatory drugs, intentional self-harm, sequelaCMS: Poisn by local antifung/infect/inflamm drugs, slf-hrm, sqla | Can lead a claim | A | None |
| T49.0X3 Poisoning by local antifungal, anti-infective and anti-inflammatory drugs, assault | ||||
| T49.0X3A | Poisoning by local antifungal, anti-infective and anti-inflammatory drugs, assault, initial encounterCMS: Poisn by local antifung/infect/inflamm drugs, assault, init | Can lead a claim | A | None |
| T49.0X3D | Poisoning by local antifungal, anti-infective and anti-inflammatory drugs, assault, subsequent encounterCMS: Poisn by local antifung/infect/inflamm drugs, assault, subs | Can lead a claim | A | None |
| T49.0X3S | Poisoning by local antifungal, anti-infective and anti-inflammatory drugs, assault, sequelaCMS: Poisn by local antifung/infect/inflamm drugs, asslt, sequela | Can lead a claim | A | None |
| T49.0X4 Poisoning by local antifungal, anti-infective and anti-inflammatory drugs, undetermined | ||||
| T49.0X4A | Poisoning by local antifungal, anti-infective and anti-inflammatory drugs, undetermined, initial encounterCMS: Poisn by local antifung/infect/inflamm drugs, undet, init | Can lead a claim | A | None |
| T49.0X4D | Poisoning by local antifungal, anti-infective and anti-inflammatory drugs, undetermined, subsequent encounterCMS: Poisn by local antifung/infect/inflamm drugs, undet, subs | Can lead a claim | A | None |
| T49.0X4S | Poisoning by local antifungal, anti-infective and anti-inflammatory drugs, undetermined, sequelaCMS: Poisn by local antifung/infect/inflamm drugs, undet, sequela | Can lead a claim | A | None |
| T49.0X5 Adverse effect of local antifungal, anti-infective and anti-inflammatory drugs | ||||
| T49.0X5A | Adverse effect of local antifungal, anti-infective and anti-inflammatory drugs, initial encounterCMS: Adverse effect of local antifung/infect/inflamm drugs, init | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| T49.0X5D | Adverse effect of local antifungal, anti-infective and anti-inflammatory drugs, subsequent encounterCMS: Adverse effect of local antifung/infect/inflamm drugs, subs | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| T49.0X5S | Adverse effect of local antifungal, anti-infective and anti-inflammatory drugs, sequelaCMS: Advrs effect of local antifung/infect/inflamm drugs, sequela | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| T49.0X6 Underdosing of local antifungal, anti-infective and anti-inflammatory drugs | ||||
| T49.0X6A | Underdosing of local antifungal, anti-infective and anti-inflammatory drugs, initial encounterCMS: Underdosing of local antifung/infect/inflamm drugs, init | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| T49.0X6D | Underdosing of local antifungal, anti-infective and anti-inflammatory drugs, subsequent encounterCMS: Underdosing of local antifung/infect/inflamm drugs, subs | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| T49.0X6S | Underdosing of local antifungal, anti-infective and anti-inflammatory drugs, sequelaCMS: Underdosing of local antifung/infect/inflamm drugs, sequela | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| T49.1 Poisoning by, adverse effect of and underdosing of antipruritics | ||||
| T49.1X Poisoning by, adverse effect of and underdosing of antipruritics | ||||
| T49.1X1 Poisoning by antipruritics, accidental (unintentional) | ||||
| T49.1X1A | Poisoning by antipruritics, accidental (unintentional), initial encounterCMS: Poisoning by antipruritics, accidental (unintentional), init | Can lead a claim | A | None |
| T49.1X1D | Poisoning by antipruritics, accidental (unintentional), subsequent encounterCMS: Poisoning by antipruritics, accidental (unintentional), subs | Can lead a claim | A | None |
| T49.1X1S | Poisoning by antipruritics, accidental (unintentional), sequelaCMS: Poisoning by antipruritics, accidental, sequela | Can lead a claim | A | None |
| T49.1X2 Poisoning by antipruritics, intentional self-harm | ||||
| T49.1X2A | Poisoning by antipruritics, intentional self-harm, initial encounterCMS: Poisoning by antipruritics, intentional self-harm, init | Can lead a claim | A | None |
| T49.1X2D | Poisoning by antipruritics, intentional self-harm, subsequent encounterCMS: Poisoning by antipruritics, intentional self-harm, subs | Can lead a claim | A | None |
| T49.1X2S | Poisoning by antipruritics, intentional self-harm, sequela | Can lead a claim | A | None |
| T49.1X3 Poisoning by antipruritics, assault | ||||
| T49.1X3A | Poisoning by antipruritics, assault, initial encounter | Can lead a claim | A | None |
| T49.1X3D | Poisoning by antipruritics, assault, subsequent encounter | Can lead a claim | A | None |
| T49.1X3S | Poisoning by antipruritics, assault, sequela | Can lead a claim | A | None |
| T49.1X4 Poisoning by antipruritics, undetermined | ||||
| T49.1X4A | Poisoning by antipruritics, undetermined, initial encounter | Can lead a claim | A | None |
| T49.1X4D | Poisoning by antipruritics, undetermined, subsequent encounterCMS: Poisoning by antipruritics, undetermined, subs encntr | Can lead a claim | A | None |
| T49.1X4S | Poisoning by antipruritics, undetermined, sequela | Can lead a claim | A | None |
| T49.1X5 Adverse effect of antipruritics | ||||
| T49.1X5A | Adverse effect of antipruritics, initial encounter | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| T49.1X5D | Adverse effect of antipruritics, subsequent encounter | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| T49.1X5S | Adverse effect of antipruritics, sequela | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| T49.1X6 Underdosing of antipruritics | ||||
| T49.1X6A | Underdosing of antipruritics, initial encounter | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| T49.1X6D | Underdosing of antipruritics, subsequent encounter | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| T49.1X6S | Underdosing of antipruritics, sequela | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| T49.2 Poisoning by, adverse effect of and underdosing of local astringents and local detergents | ||||
| T49.2X Poisoning by, adverse effect of and underdosing of local astringents and local detergents | ||||
| T49.2X1 Poisoning by local astringents and local detergents, accidental (unintentional) | ||||
| T49.2X1A | Poisoning by local astringents and local detergents, accidental (unintentional), initial encounterCMS: Poisoning by local astringents/detergents, accidental, init | Can lead a claim | A | None |
| T49.2X1D | Poisoning by local astringents and local detergents, accidental (unintentional), subsequent encounterCMS: Poisoning by local astringents/detergents, accidental, subs | Can lead a claim | A | None |
| T49.2X1S | Poisoning by local astringents and local detergents, accidental (unintentional), sequelaCMS: Poisoning by local astringents/detergents, acc, sequela | Can lead a claim | A | None |
| T49.2X2 Poisoning by local astringents and local detergents, intentional self-harm | ||||
| T49.2X2A | Poisoning by local astringents and local detergents, intentional self-harm, initial encounterCMS: Poisoning by local astringents/detergents, self-harm, init | Can lead a claim | A | None |
| T49.2X2D | Poisoning by local astringents and local detergents, intentional self-harm, subsequent encounterCMS: Poisoning by local astringents/detergents, self-harm, subs | Can lead a claim | A | None |
| T49.2X2S | Poisoning by local astringents and local detergents, intentional self-harm, sequelaCMS: Poisn by local astringents/detergents, self-harm, sequela | Can lead a claim | A | None |
| T49.2X3 Poisoning by local astringents and local detergents, assault | ||||
| T49.2X3A | Poisoning by local astringents and local detergents, assault, initial encounterCMS: Poisoning by local astringents/detergents, assault, init | Can lead a claim | A | None |
| T49.2X3D | Poisoning by local astringents and local detergents, assault, subsequent encounterCMS: Poisoning by local astringents/detergents, assault, subs | Can lead a claim | A | None |
| T49.2X3S | Poisoning by local astringents and local detergents, assault, sequelaCMS: Poisoning by local astringents/detergents, assault, sequela | Can lead a claim | A | None |
| T49.2X4 Poisoning by local astringents and local detergents, undetermined | ||||
| T49.2X4A | Poisoning by local astringents and local detergents, undetermined, initial encounterCMS: Poisoning by local astringents/detergents, undet, init | Can lead a claim | A | None |
| T49.2X4D | Poisoning by local astringents and local detergents, undetermined, subsequent encounterCMS: Poisoning by local astringents/detergents, undet, subs | Can lead a claim | A | None |
| T49.2X4S | Poisoning by local astringents and local detergents, undetermined, sequelaCMS: Poisoning by local astringents/detergents, undet, sequela | Can lead a claim | A | None |
| T49.2X5 Adverse effect of local astringents and local detergents | ||||
| T49.2X5A | Adverse effect of local astringents and local detergents, initial encounterCMS: Adverse effect of local astringents/detergents, init | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| T49.2X5D | Adverse effect of local astringents and local detergents, subsequent encounterCMS: Adverse effect of local astringents/detergents, subs | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| T49.2X5S | Adverse effect of local astringents and local detergents, sequelaCMS: Adverse effect of local astringents/detergents, sequela | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| T49.2X6 Underdosing of local astringents and local detergents | ||||
| T49.2X6A | Underdosing of local astringents and local detergents, initial encounterCMS: Underdosing of local astringents and local detergents, init | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| T49.2X6D | Underdosing of local astringents and local detergents, subsequent encounterCMS: Underdosing of local astringents and local detergents, subs | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| T49.2X6S | Underdosing of local astringents and local detergents, sequelaCMS: Underdosing of local astringents/detergents, sequela | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| T49.3 Poisoning by, adverse effect of and underdosing of emollients, demulcents and protectants | ||||
| T49.3X Poisoning by, adverse effect of and underdosing of emollients, demulcents and protectants | ||||
| T49.3X1 Poisoning by emollients, demulcents and protectants, accidental (unintentional) | ||||
| T49.3X1A | Poisoning by emollients, demulcents and protectants, accidental (unintentional), initial encounterCMS: Poisoning by emollients, demulcents and protect, acc, init | Can lead a claim | A | None |
| T49.3X1D | Poisoning by emollients, demulcents and protectants, accidental (unintentional), subsequent encounterCMS: Poisoning by emollients, demulcents and protect, acc, subs | Can lead a claim | A | None |
| T49.3X1S | Poisoning by emollients, demulcents and protectants, accidental (unintentional), sequelaCMS: Poisn by emollients, demulcents and protect, acc, sequela | Can lead a claim | A | None |
| T49.3X2 Poisoning by emollients, demulcents and protectants, intentional self-harm | ||||
| T49.3X2A | Poisoning by emollients, demulcents and protectants, intentional self-harm, initial encounterCMS: Poisn by emollients, demulcents and protect, self-harm, init | Can lead a claim | A | None |
| T49.3X2D | Poisoning by emollients, demulcents and protectants, intentional self-harm, subsequent encounterCMS: Poisn by emollients, demulcents and protect, self-harm, subs | Can lead a claim | A | None |
| T49.3X2S | Poisoning by emollients, demulcents and protectants, intentional self-harm, sequelaCMS: Poisn by emollients, demulcents and protect, slf-hrm, sqla | Can lead a claim | A | None |
| T49.3X3 Poisoning by emollients, demulcents and protectants, assault | ||||
| T49.3X3A | Poisoning by emollients, demulcents and protectants, assault, initial encounterCMS: Poisn by emollients, demulcents and protect, assault, init | Can lead a claim | A | None |
| T49.3X3D | Poisoning by emollients, demulcents and protectants, assault, subsequent encounterCMS: Poisn by emollients, demulcents and protect, assault, subs | Can lead a claim | A | None |
| T49.3X3S | Poisoning by emollients, demulcents and protectants, assault, sequelaCMS: Poisn by emollients, demulcents and protect, asslt, sequela | Can lead a claim | A | None |
| T49.3X4 Poisoning by emollients, demulcents and protectants, undetermined | ||||
| T49.3X4A | Poisoning by emollients, demulcents and protectants, undetermined, initial encounterCMS: Poisoning by emollients, demulcents and protect, undet, init | Can lead a claim | A | None |
| T49.3X4D | Poisoning by emollients, demulcents and protectants, undetermined, subsequent encounterCMS: Poisoning by emollients, demulcents and protect, undet, subs | Can lead a claim | A | None |
| T49.3X4S | Poisoning by emollients, demulcents and protectants, undetermined, sequelaCMS: Poisn by emollients, demulcents and protect, undet, sequela | Can lead a claim | A | None |
| T49.3X5 Adverse effect of emollients, demulcents and protectants | ||||
| T49.3X5A | Adverse effect of emollients, demulcents and protectants, initial encounterCMS: Adverse effect of emollients, demulcents and protect, init | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| T49.3X5D | Adverse effect of emollients, demulcents and protectants, subsequent encounterCMS: Adverse effect of emollients, demulcents and protect, subs | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| T49.3X5S | Adverse effect of emollients, demulcents and protectants, sequelaCMS: Advrs effect of emollients, demulcents and protect, sequela | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| T49.3X6 Underdosing of emollients, demulcents and protectants | ||||
| T49.3X6A | Underdosing of emollients, demulcents and protectants, initial encounterCMS: Underdosing of emollients, demulcents and protectants, init | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| T49.3X6D | Underdosing of emollients, demulcents and protectants, subsequent encounterCMS: Underdosing of emollients, demulcents and protectants, subs | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| T49.3X6S | Underdosing of emollients, demulcents and protectants, sequelaCMS: Underdosing of emollients, demulcents and protect, sequela | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| T49.4 Poisoning by, adverse effect of and underdosing of keratolytics, keratoplastics, and other hair treatment drugs and preparations | ||||
| T49.4X Poisoning by, adverse effect of and underdosing of keratolytics, keratoplastics, and other hair treatment drugs and preparations | ||||
| T49.4X1 Poisoning by keratolytics, keratoplastics, and other hair treatment drugs and preparations, accidental (unintentional) | ||||
| T49.4X1A | Poisoning by keratolytics, keratoplastics, and other hair treatment drugs and preparations, accidental (unintentional), initial encounterCMS: Poisoning by keratolyt/keratplst/hair trmt drug, acc, init | Can lead a claim | A | None |
| T49.4X1D | Poisoning by keratolytics, keratoplastics, and other hair treatment drugs and preparations, accidental (unintentional), subsequent encounterCMS: Poisoning by keratolyt/keratplst/hair trmt drug, acc, subs | Can lead a claim | A | None |
| T49.4X1S | Poisoning by keratolytics, keratoplastics, and other hair treatment drugs and preparations, accidental (unintentional), sequelaCMS: Poisn by keratolyt/keratplst/hair trmt drug, acc, sequela | Can lead a claim | A | None |
| T49.4X2 Poisoning by keratolytics, keratoplastics, and other hair treatment drugs and preparations, intentional self-harm | ||||
| T49.4X2A | Poisoning by keratolytics, keratoplastics, and other hair treatment drugs and preparations, intentional self-harm, initial encounterCMS: Poisn by keratolyt/keratplst/hair trmt drug, self-harm, init | Can lead a claim | A | None |
| T49.4X2D | Poisoning by keratolytics, keratoplastics, and other hair treatment drugs and preparations, intentional self-harm, subsequent encounterCMS: Poisn by keratolyt/keratplst/hair trmt drug, self-harm, subs | Can lead a claim | A | None |
| T49.4X2S | Poisoning by keratolytics, keratoplastics, and other hair treatment drugs and preparations, intentional self-harm, sequelaCMS: Poisn by keratolyt/keratplst/hair trmt drug, slf-hrm, sqla | Can lead a claim | A | None |
| T49.4X3 Poisoning by keratolytics, keratoplastics, and other hair treatment drugs and preparations, assault | ||||
| T49.4X3A | Poisoning by keratolytics, keratoplastics, and other hair treatment drugs and preparations, assault, initial encounterCMS: Poisn by keratolyt/keratplst/hair trmt drug, assault, init | Can lead a claim | A | None |
| T49.4X3D | Poisoning by keratolytics, keratoplastics, and other hair treatment drugs and preparations, assault, subsequent encounterCMS: Poisn by keratolyt/keratplst/hair trmt drug, assault, subs | Can lead a claim | A | None |
| T49.4X3S | Poisoning by keratolytics, keratoplastics, and other hair treatment drugs and preparations, assault, sequelaCMS: Poisn by keratolyt/keratplst/hair trmt drug, asslt, sequela | Can lead a claim | A | None |
| T49.4X4 Poisoning by keratolytics, keratoplastics, and other hair treatment drugs and preparations, undetermined | ||||
| T49.4X4A | Poisoning by keratolytics, keratoplastics, and other hair treatment drugs and preparations, undetermined, initial encounterCMS: Poisoning by keratolyt/keratplst/hair trmt drug, undet, init | Can lead a claim | A | None |
| T49.4X4D | Poisoning by keratolytics, keratoplastics, and other hair treatment drugs and preparations, undetermined, subsequent encounterCMS: Poisoning by keratolyt/keratplst/hair trmt drug, undet, subs | Can lead a claim | A | None |
| T49.4X4S | Poisoning by keratolytics, keratoplastics, and other hair treatment drugs and preparations, undetermined, sequelaCMS: Poisn by keratolyt/keratplst/hair trmt drug, undet, sequela | Can lead a claim | A | None |
| T49.4X5 Adverse effect of keratolytics, keratoplastics, and other hair treatment drugs and preparations | ||||
| T49.4X5A | Adverse effect of keratolytics, keratoplastics, and other hair treatment drugs and preparations, initial encounterCMS: Adverse effect of keratolyt/keratplst/hair trmt drug, init | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| T49.4X5D | Adverse effect of keratolytics, keratoplastics, and other hair treatment drugs and preparations, subsequent encounterCMS: Adverse effect of keratolyt/keratplst/hair trmt drug, subs | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| T49.4X5S | Adverse effect of keratolytics, keratoplastics, and other hair treatment drugs and preparations, sequelaCMS: Advrs effect of keratolyt/keratplst/hair trmt drug, sequela | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| T49.4X6 Underdosing of keratolytics, keratoplastics, and other hair treatment drugs and preparations | ||||
| T49.4X6A | Underdosing of keratolytics, keratoplastics, and other hair treatment drugs and preparations, initial encounterCMS: Underdosing of keratolyt/keratplst/hair trmt drug, init | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| T49.4X6D | Underdosing of keratolytics, keratoplastics, and other hair treatment drugs and preparations, subsequent encounterCMS: Underdosing of keratolyt/keratplst/hair trmt drug, subs | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| T49.4X6S | Underdosing of keratolytics, keratoplastics, and other hair treatment drugs and preparations, sequelaCMS: Underdosing of keratolyt/keratplst/hair trmt drug, sequela | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| T49.5 Poisoning by, adverse effect of and underdosing of ophthalmological drugs and preparations | ||||
| T49.5X Poisoning by, adverse effect of and underdosing of ophthalmological drugs and preparations | ||||
| T49.5X1 Poisoning by ophthalmological drugs and preparations, accidental (unintentional) | ||||
| T49.5X1A | Poisoning by ophthalmological drugs and preparations, accidental (unintentional), initial encounterCMS: Poisoning by opth drugs and preparations, accidental, init | Can lead a claim | A | None |
| T49.5X1D | Poisoning by ophthalmological drugs and preparations, accidental (unintentional), subsequent encounterCMS: Poisoning by opth drugs and preparations, accidental, subs | Can lead a claim | A | None |
| T49.5X1S | Poisoning by ophthalmological drugs and preparations, accidental (unintentional), sequelaCMS: Poisoning by opth drugs and prep, accidental, sequela | Can lead a claim | A | None |
| T49.5X2 Poisoning by ophthalmological drugs and preparations, intentional self-harm | ||||
| T49.5X2A | Poisoning by ophthalmological drugs and preparations, intentional self-harm, initial encounterCMS: Poisoning by opth drugs and preparations, self-harm, init | Can lead a claim | A | None |
| T49.5X2D | Poisoning by ophthalmological drugs and preparations, intentional self-harm, subsequent encounterCMS: Poisoning by opth drugs and preparations, self-harm, subs | Can lead a claim | A | None |
| T49.5X2S | Poisoning by ophthalmological drugs and preparations, intentional self-harm, sequelaCMS: Poisoning by opth drugs and preparations, self-harm, sequela | Can lead a claim | A | None |
| T49.5X3 Poisoning by ophthalmological drugs and preparations, assault | ||||
| T49.5X3A | Poisoning by ophthalmological drugs and preparations, assault, initial encounterCMS: Poisoning by opth drugs and preparations, assault, init | Can lead a claim | A | None |
| T49.5X3D | Poisoning by ophthalmological drugs and preparations, assault, subsequent encounterCMS: Poisoning by opth drugs and preparations, assault, subs | Can lead a claim | A | None |
| T49.5X3S | Poisoning by ophthalmological drugs and preparations, assault, sequelaCMS: Poisoning by opth drugs and preparations, assault, sequela | Can lead a claim | A | None |
| T49.5X4 Poisoning by ophthalmological drugs and preparations, undetermined | ||||
| T49.5X4A | Poisoning by ophthalmological drugs and preparations, undetermined, initial encounterCMS: Poisoning by opth drugs and preparations, undetermined, init | Can lead a claim | A | None |
| T49.5X4D | Poisoning by ophthalmological drugs and preparations, undetermined, subsequent encounterCMS: Poisoning by opth drugs and preparations, undetermined, subs | Can lead a claim | A | None |
| T49.5X4S | Poisoning by ophthalmological drugs and preparations, undetermined, sequelaCMS: Poisoning by opth drugs and prep, undetermined, sequela | Can lead a claim | A | None |
| T49.5X5 Adverse effect of ophthalmological drugs and preparations | ||||
| T49.5X5A | Adverse effect of ophthalmological drugs and preparations, initial encounterCMS: Adverse effect of opth drugs and preparations, init | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| T49.5X5D | Adverse effect of ophthalmological drugs and preparations, subsequent encounterCMS: Adverse effect of opth drugs and preparations, subs | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| T49.5X5S | Adverse effect of ophthalmological drugs and preparations, sequelaCMS: Adverse effect of opth drugs and preparations, sequela | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| T49.5X6 Underdosing of ophthalmological drugs and preparations | ||||
| T49.5X6A | Underdosing of ophthalmological drugs and preparations, initial encounterCMS: Underdosing of ophthalmological drugs and preparations, init | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| T49.5X6D | Underdosing of ophthalmological drugs and preparations, subsequent encounterCMS: Underdosing of ophthalmological drugs and preparations, subs | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| T49.5X6S | Underdosing of ophthalmological drugs and preparations, sequelaCMS: Underdosing of opth drugs and preparations, sequela | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| T49.6 Poisoning by, adverse effect of and underdosing of otorhinolaryngological drugs and preparations | ||||
| T49.6X Poisoning by, adverse effect of and underdosing of otorhinolaryngological drugs and preparations | ||||
| T49.6X1 Poisoning by otorhinolaryngological drugs and preparations, accidental (unintentional) | ||||
| T49.6X1A | Poisoning by otorhinolaryngological drugs and preparations, accidental (unintentional), initial encounterCMS: Poisoning by otorhino drugs and prep, accidental, init | Can lead a claim | A | None |
| T49.6X1D | Poisoning by otorhinolaryngological drugs and preparations, accidental (unintentional), subsequent encounterCMS: Poisoning by otorhino drugs and prep, accidental, subs | Can lead a claim | A | None |
| T49.6X1S | Poisoning by otorhinolaryngological drugs and preparations, accidental (unintentional), sequelaCMS: Poisoning by otorhino drugs and prep, accidental, sequela | Can lead a claim | A | None |
| T49.6X2 Poisoning by otorhinolaryngological drugs and preparations, intentional self-harm | ||||
| T49.6X2A | Poisoning by otorhinolaryngological drugs and preparations, intentional self-harm, initial encounterCMS: Poisoning by otorhino drugs and prep, self-harm, init | Can lead a claim | A | None |
| T49.6X2D | Poisoning by otorhinolaryngological drugs and preparations, intentional self-harm, subsequent encounterCMS: Poisoning by otorhino drugs and prep, self-harm, subs | Can lead a claim | A | None |
| T49.6X2S | Poisoning by otorhinolaryngological drugs and preparations, intentional self-harm, sequelaCMS: Poisoning by otorhino drugs and prep, self-harm, sequela | Can lead a claim | A | None |
| T49.6X3 Poisoning by otorhinolaryngological drugs and preparations, assault | ||||
| T49.6X3A | Poisoning by otorhinolaryngological drugs and preparations, assault, initial encounterCMS: Poisoning by otorhino drugs and preparations, assault, init | Can lead a claim | A | None |
| T49.6X3D | Poisoning by otorhinolaryngological drugs and preparations, assault, subsequent encounterCMS: Poisoning by otorhino drugs and preparations, assault, subs | Can lead a claim | A | None |
| T49.6X3S | Poisoning by otorhinolaryngological drugs and preparations, assault, sequelaCMS: Poisoning by otorhino drugs and prep, assault, sequela | Can lead a claim | A | None |
| T49.6X4 Poisoning by otorhinolaryngological drugs and preparations, undetermined | ||||
| T49.6X4A | Poisoning by otorhinolaryngological drugs and preparations, undetermined, initial encounterCMS: Poisoning by otorhino drugs and prep, undetermined, init | Can lead a claim | A | None |
| T49.6X4D | Poisoning by otorhinolaryngological drugs and preparations, undetermined, subsequent encounterCMS: Poisoning by otorhino drugs and prep, undetermined, subs | Can lead a claim | A | None |
| T49.6X4S | Poisoning by otorhinolaryngological drugs and preparations, undetermined, sequelaCMS: Poisoning by otorhino drugs and prep, undetermined, sequela | Can lead a claim | A | None |
| T49.6X5 Adverse effect of otorhinolaryngological drugs and preparations | ||||
| T49.6X5A | Adverse effect of otorhinolaryngological drugs and preparations, initial encounterCMS: Adverse effect of otorhino drugs and preparations, init | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| T49.6X5D | Adverse effect of otorhinolaryngological drugs and preparations, subsequent encounterCMS: Adverse effect of otorhino drugs and preparations, subs | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| T49.6X5S | Adverse effect of otorhinolaryngological drugs and preparations, sequelaCMS: Adverse effect of otorhino drugs and preparations, sequela | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| T49.6X6 Underdosing of otorhinolaryngological drugs and preparations | ||||
| T49.6X6A | Underdosing of otorhinolaryngological drugs and preparations, initial encounterCMS: Underdosing of otorhino drugs and preparations, init | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| T49.6X6D | Underdosing of otorhinolaryngological drugs and preparations, subsequent encounterCMS: Underdosing of otorhino drugs and preparations, subs | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| T49.6X6S | Underdosing of otorhinolaryngological drugs and preparations, sequelaCMS: Underdosing of otorhino drugs and preparations, sequela | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| T49.7 Poisoning by, adverse effect of and underdosing of dental drugs, topically applied | ||||
| T49.7X Poisoning by, adverse effect of and underdosing of dental drugs, topically applied | ||||
| T49.7X1 Poisoning by dental drugs, topically applied, accidental (unintentional) | ||||
| T49.7X1A | Poisoning by dental drugs, topically applied, accidental (unintentional), initial encounterCMS: Poisoning by dental drugs, topically applied, acc, init | Can lead a claim | A | None |
| T49.7X1D | Poisoning by dental drugs, topically applied, accidental (unintentional), subsequent encounterCMS: Poisoning by dental drugs, topically applied, acc, subs | Can lead a claim | A | None |
| T49.7X1S | Poisoning by dental drugs, topically applied, accidental (unintentional), sequelaCMS: Poisoning by dental drugs, topically applied, acc, sequela | Can lead a claim | A | None |
| T49.7X2 Poisoning by dental drugs, topically applied, intentional self-harm | ||||
| T49.7X2A | Poisoning by dental drugs, topically applied, intentional self-harm, initial encounterCMS: Poisn by dental drugs, topically applied, self-harm, init | Can lead a claim | A | None |
| T49.7X2D | Poisoning by dental drugs, topically applied, intentional self-harm, subsequent encounterCMS: Poisn by dental drugs, topically applied, self-harm, subs | Can lead a claim | A | None |
| T49.7X2S | Poisoning by dental drugs, topically applied, intentional self-harm, sequelaCMS: Poisn by dental drugs, topically applied, self-harm, sequela | Can lead a claim | A | None |
| T49.7X3 Poisoning by dental drugs, topically applied, assault | ||||
| T49.7X3A | Poisoning by dental drugs, topically applied, assault, initial encounterCMS: Poisoning by dental drugs, topically applied, assault, init | Can lead a claim | A | None |
| T49.7X3D | Poisoning by dental drugs, topically applied, assault, subsequent encounterCMS: Poisoning by dental drugs, topically applied, assault, subs | Can lead a claim | A | None |
| T49.7X3S | Poisoning by dental drugs, topically applied, assault, sequelaCMS: Poisn by dental drugs, topically applied, assault, sequela | Can lead a claim | A | None |
| T49.7X4 Poisoning by dental drugs, topically applied, undetermined | ||||
| T49.7X4A | Poisoning by dental drugs, topically applied, undetermined, initial encounterCMS: Poisoning by dental drugs, topically applied, undet, init | Can lead a claim | A | None |
| T49.7X4D | Poisoning by dental drugs, topically applied, undetermined, subsequent encounterCMS: Poisoning by dental drugs, topically applied, undet, subs | Can lead a claim | A | None |
| T49.7X4S | Poisoning by dental drugs, topically applied, undetermined, sequelaCMS: Poisoning by dental drugs, topically applied, undet, sequela | Can lead a claim | A | None |
| T49.7X5 Adverse effect of dental drugs, topically applied | ||||
| T49.7X5A | Adverse effect of dental drugs, topically applied, initial encounterCMS: Adverse effect of dental drugs, topically applied, init | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| T49.7X5D | Adverse effect of dental drugs, topically applied, subsequent encounterCMS: Adverse effect of dental drugs, topically applied, subs | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| T49.7X5S | Adverse effect of dental drugs, topically applied, sequela | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| T49.7X6 Underdosing of dental drugs, topically applied | ||||
| T49.7X6A | Underdosing of dental drugs, topically applied, initial encounterCMS: Underdosing of dental drugs, topically applied, init encntr | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| T49.7X6D | Underdosing of dental drugs, topically applied, subsequent encounterCMS: Underdosing of dental drugs, topically applied, subs encntr | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| T49.7X6S | Underdosing of dental drugs, topically applied, sequela | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| T49.8 Poisoning by, adverse effect of and underdosing of other topical agents | ||||
| T49.8X Poisoning by, adverse effect of and underdosing of other topical agents | ||||
| T49.8X1 Poisoning by other topical agents, accidental (unintentional) | ||||
| T49.8X1A | Poisoning by other topical agents, accidental (unintentional), initial encounterCMS: Poisoning by oth topical agents, accidental, init | Can lead a claim | A | None |
| T49.8X1D | Poisoning by other topical agents, accidental (unintentional), subsequent encounterCMS: Poisoning by oth topical agents, accidental, subs | Can lead a claim | A | None |
| T49.8X1S | Poisoning by other topical agents, accidental (unintentional), sequelaCMS: Poisoning by oth topical agents, accidental, sequela | Can lead a claim | A | None |
| T49.8X2 Poisoning by other topical agents, intentional self-harm | ||||
| T49.8X2A | Poisoning by other topical agents, intentional self-harm, initial encounterCMS: Poisoning by oth topical agents, intentional self-harm, init | Can lead a claim | A | None |
| T49.8X2D | Poisoning by other topical agents, intentional self-harm, subsequent encounterCMS: Poisoning by oth topical agents, intentional self-harm, subs | Can lead a claim | A | None |
| T49.8X2S | Poisoning by other topical agents, intentional self-harm, sequelaCMS: Poisoning by oth topical agents, self-harm, sequela | Can lead a claim | A | None |
| T49.8X3 Poisoning by other topical agents, assault | ||||
| T49.8X3A | Poisoning by other topical agents, assault, initial encounterCMS: Poisoning by other topical agents, assault, init encntr | Can lead a claim | A | None |
| T49.8X3D | Poisoning by other topical agents, assault, subsequent encounterCMS: Poisoning by other topical agents, assault, subs encntr | Can lead a claim | A | None |
| T49.8X3S | Poisoning by other topical agents, assault, sequela | Can lead a claim | A | None |
| T49.8X4 Poisoning by other topical agents, undetermined | ||||
| T49.8X4A | Poisoning by other topical agents, undetermined, initial encounterCMS: Poisoning by other topical agents, undetermined, init encntr | Can lead a claim | A | None |
| T49.8X4D | Poisoning by other topical agents, undetermined, subsequent encounterCMS: Poisoning by other topical agents, undetermined, subs encntr | Can lead a claim | A | None |
| T49.8X4S | Poisoning by other topical agents, undetermined, sequela | Can lead a claim | A | None |
| T49.8X5 Adverse effect of other topical agents | ||||
| T49.8X5A | Adverse effect of other topical agents, initial encounter | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| T49.8X5D | Adverse effect of other topical agents, subsequent encounter | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| T49.8X5S | Adverse effect of other topical agents, sequela | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| T49.8X6 Underdosing of other topical agents | ||||
| T49.8X6A | Underdosing of other topical agents, initial encounter | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| T49.8X6D | Underdosing of other topical agents, subsequent encounter | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| T49.8X6S | Underdosing of other topical agents, sequela | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| T49.9 Poisoning by, adverse effect of and underdosing of unspecified topical agent | ||||
| T49.91 Poisoning by unspecified topical agent, accidental (unintentional) | ||||
| T49.91XA | Poisoning by unspecified topical agent, accidental (unintentional), initial encounterCMS: Poisoning by unsp topical agent, accidental, init | Can lead a claim | A | None |
| T49.91XD | Poisoning by unspecified topical agent, accidental (unintentional), subsequent encounterCMS: Poisoning by unsp topical agent, accidental, subs | Can lead a claim | A | None |
| T49.91XS | Poisoning by unspecified topical agent, accidental (unintentional), sequelaCMS: Poisoning by unsp topical agent, accidental, sequela | Can lead a claim | A | None |
| T49.92 Poisoning by unspecified topical agent, intentional self-harm | ||||
| T49.92XA | Poisoning by unspecified topical agent, intentional self-harm, initial encounterCMS: Poisoning by unsp topical agent, intentional self-harm, init | Can lead a claim | A | None |
| T49.92XD | Poisoning by unspecified topical agent, intentional self-harm, subsequent encounterCMS: Poisoning by unsp topical agent, intentional self-harm, subs | Can lead a claim | A | None |
| T49.92XS | Poisoning by unspecified topical agent, intentional self-harm, sequelaCMS: Poisoning by unsp topical agent, self-harm, sequela | Can lead a claim | A | None |
| T49.93 Poisoning by unspecified topical agent, assault | ||||
| T49.93XA | Poisoning by unspecified topical agent, assault, initial encounterCMS: Poisoning by unspecified topical agent, assault, init encntr | Can lead a claim | A | None |
| T49.93XD | Poisoning by unspecified topical agent, assault, subsequent encounterCMS: Poisoning by unspecified topical agent, assault, subs encntr | Can lead a claim | A | None |
| T49.93XS | Poisoning by unspecified topical agent, assault, sequela | Can lead a claim | A | None |
| T49.94 Poisoning by unspecified topical agent, undetermined | ||||
| T49.94XA | Poisoning by unspecified topical agent, undetermined, initial encounterCMS: Poisoning by unsp topical agent, undetermined, init encntr | Can lead a claim | A | None |
| T49.94XD | Poisoning by unspecified topical agent, undetermined, subsequent encounterCMS: Poisoning by unsp topical agent, undetermined, subs encntr | Can lead a claim | A | None |
| T49.94XS | Poisoning by unspecified topical agent, undetermined, sequelaCMS: Poisoning by unsp topical agent, undetermined, sequela | Can lead a claim | A | None |
| T49.95 Adverse effect of unspecified topical agent | ||||
| T49.95XA | Adverse effect of unspecified topical agent, initial encounterCMS: Adverse effect of unspecified topical agent, init encntr | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| T49.95XD | Adverse effect of unspecified topical agent, subsequent encounterCMS: Adverse effect of unspecified topical agent, subs encntr | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| T49.95XS | Adverse effect of unspecified topical agent, sequela | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| T49.96 Underdosing of unspecified topical agent | ||||
| T49.96XA | Underdosing of unspecified topical agent, initial encounter | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| T49.96XD | Underdosing of unspecified topical agent, subsequent encounterCMS: Underdosing of unspecified topical agent, subs encntr | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
| T49.96XS | Underdosing of unspecified topical agent, sequela | Cannot lead a claimUnacceptable principal diagnosis, code is not reportable as principal diagnosis | None | None |
Sources: CMS HH PPS Grouper Software v07.2.26, effective 2026-10-01, for the clinical group, comorbidity subgroup, code-first conventions and primary-position flags; CDC NCHS ICD-10-CM FY2027 code descriptions for the family title and code wording. This is the crosswalk Medicare runs a claim through. Grouping also depends on admission source, timing, the OASIS functional items and the rest of the diagnosis list.
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