ICD-10 · PDGM grouping
T64 Toxic effect of aflatoxin and other mycotoxin food contaminants
All 24 codes in the T64 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
24
Can lead a claim
24
Cannot lead a claim
0
What CMS assigns to T64
All 24 codes group to MMTA - Other. None of the 24 is assigned a comorbidity subgroup. Every code can lead a claim.
Every code in T64
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 |
|---|---|---|---|---|
| T64.0 Toxic effect of aflatoxin | ||||
| T64.01 Toxic effect of aflatoxin, accidental (unintentional) | ||||
| T64.01XA | Toxic effect of aflatoxin, accidental (unintentional), initial encounterCMS: Toxic effect of aflatoxin, accidental (unintentional), init | Can lead a claim | A | None |
| T64.01XD | Toxic effect of aflatoxin, accidental (unintentional), subsequent encounterCMS: Toxic effect of aflatoxin, accidental (unintentional), subs | Can lead a claim | A | None |
| T64.01XS | Toxic effect of aflatoxin, accidental (unintentional), sequelaCMS: Toxic effect of aflatoxin, accidental, sequela | Can lead a claim | A | None |
| T64.02 Toxic effect of aflatoxin, intentional self-harm | ||||
| T64.02XA | Toxic effect of aflatoxin, intentional self-harm, initial encounterCMS: Toxic effect of aflatoxin, intentional self-harm, init | Can lead a claim | A | None |
| T64.02XD | Toxic effect of aflatoxin, intentional self-harm, subsequent encounterCMS: Toxic effect of aflatoxin, intentional self-harm, subs | Can lead a claim | A | None |
| T64.02XS | Toxic effect of aflatoxin, intentional self-harm, sequela | Can lead a claim | A | None |
| T64.03 Toxic effect of aflatoxin, assault | ||||
| T64.03XA | Toxic effect of aflatoxin, assault, initial encounter | Can lead a claim | A | None |
| T64.03XD | Toxic effect of aflatoxin, assault, subsequent encounter | Can lead a claim | A | None |
| T64.03XS | Toxic effect of aflatoxin, assault, sequela | Can lead a claim | A | None |
| T64.04 Toxic effect of aflatoxin, undetermined | ||||
| T64.04XA | Toxic effect of aflatoxin, undetermined, initial encounter | Can lead a claim | A | None |
| T64.04XD | Toxic effect of aflatoxin, undetermined, subsequent encounterCMS: Toxic effect of aflatoxin, undetermined, subs encntr | Can lead a claim | A | None |
| T64.04XS | Toxic effect of aflatoxin, undetermined, sequela | Can lead a claim | A | None |
| T64.8 Toxic effect of other mycotoxin food contaminants | ||||
| T64.81 Toxic effect of other mycotoxin food contaminants, accidental (unintentional) | ||||
| T64.81XA | Toxic effect of other mycotoxin food contaminants, accidental (unintentional), initial encounterCMS: Toxic effect of mycotoxin food contamnt, accidental, init | Can lead a claim | A | None |
| T64.81XD | Toxic effect of other mycotoxin food contaminants, accidental (unintentional), subsequent encounterCMS: Toxic effect of mycotoxin food contamnt, accidental, subs | Can lead a claim | A | None |
| T64.81XS | Toxic effect of other mycotoxin food contaminants, accidental (unintentional), sequelaCMS: Toxic effect of mycotoxin food contamnt, acc, sequela | Can lead a claim | A | None |
| T64.82 Toxic effect of other mycotoxin food contaminants, intentional self-harm | ||||
| T64.82XA | Toxic effect of other mycotoxin food contaminants, intentional self-harm, initial encounterCMS: Toxic effect of mycotoxin food contaminants, self-harm, init | Can lead a claim | A | None |
| T64.82XD | Toxic effect of other mycotoxin food contaminants, intentional self-harm, subsequent encounterCMS: Toxic effect of mycotoxin food contaminants, self-harm, subs | Can lead a claim | A | None |
| T64.82XS | Toxic effect of other mycotoxin food contaminants, intentional self-harm, sequelaCMS: Toxic effect of mycotoxin food contamnt, self-harm, sequela | Can lead a claim | A | None |
| T64.83 Toxic effect of other mycotoxin food contaminants, assault | ||||
| T64.83XA | Toxic effect of other mycotoxin food contaminants, assault, initial encounterCMS: Toxic effect of mycotoxin food contaminants, assault, init | Can lead a claim | A | None |
| T64.83XD | Toxic effect of other mycotoxin food contaminants, assault, subsequent encounterCMS: Toxic effect of mycotoxin food contaminants, assault, subs | Can lead a claim | A | None |
| T64.83XS | Toxic effect of other mycotoxin food contaminants, assault, sequelaCMS: Toxic effect of mycotoxin food contamnt, assault, sequela | Can lead a claim | A | None |
| T64.84 Toxic effect of other mycotoxin food contaminants, undetermined | ||||
| T64.84XA | Toxic effect of other mycotoxin food contaminants, undetermined, initial encounterCMS: Toxic effect of mycotoxin food contamnt, undetermined, init | Can lead a claim | A | None |
| T64.84XD | Toxic effect of other mycotoxin food contaminants, undetermined, subsequent encounterCMS: Toxic effect of mycotoxin food contamnt, undetermined, subs | Can lead a claim | A | None |
| T64.84XS | Toxic effect of other mycotoxin food contaminants, undetermined, sequelaCMS: Toxic effect of mycotoxin food contamnt, undet, sequela | Can lead a claim | A | 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.
The monthly home health regs digest
What CMS changed, what's due next, and what to do about it — one email a month, no fluff. Read the first issue