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ICD-10-CM Current in FY 2027

T50.991A

Poisoning by other drugs, medicaments and biological substances, accidental (unintentional), initial encounter

Release
FY 2027
Effective
Official source (opens in a new tab)

Hierarchy

Where T50.991A sits in the official hierarchy. Each level is the code it is classified under.

  1. T50 Poisoning by, adverse effect of and underdosing of diuretics and other and unspecified drugs, medicaments and biological substances
  2. T50.9 Poisoning by, adverse effect of and underdosing of other and unspecified drugs, medicaments and biological substances
  3. T50.99 Poisoning by, adverse effect of and underdosing of other drugs, medicaments and biological substances
  4. T50.991 Parent Poisoning by other drugs, medicaments and biological substances, accidental (unintentional)
  5. T50.991A This code Poisoning by other drugs, medicaments and biological substances, accidental (unintentional), initial encounter

Official Coding Notes

Reproduced verbatim from the FY 2027 ICD-10-CM files. Notes labelled as inherited are declared on a parent code and apply here too.

7th Character

The appropriate 7th character is to be added to each code from category T50

Inherited from T50 — Poisoning by, adverse effect of and underdosing of diuretics and other and unspecified drugs, medicaments and biological substances

7th Character

A - initial encounter

Inherited from T50 — Poisoning by, adverse effect of and underdosing of diuretics and other and unspecified drugs, medicaments and biological substances

7th Character

D - subsequent encounter

Inherited from T50 — Poisoning by, adverse effect of and underdosing of diuretics and other and unspecified drugs, medicaments and biological substances

7th Character

S - sequela

Inherited from T50 — Poisoning by, adverse effect of and underdosing of diuretics and other and unspecified drugs, medicaments and biological substances

Version History

How T50.991A appears in each release imported from the official files, newest first.

  1. FY 2027 Effective

    Current

    Poisoning by other drugs, medicaments and biological substances, accidental (unintentional), initial encounter

  2. FY 2026 Effective

    Unchanged

    Poisoning by other drugs, medicaments and biological substances, accidental (unintentional), initial encounter

Related Codes

Other codes under T50.991

Data Source

Code information on this page is derived from the FY 2027 ICD-10-CM files published by CDC NCHS and CMS.

Release
FY 2027
Effective
Source file
icd10cm-code-descriptions-2027.zip

Official ICD-10-CM source files (opens in a new tab)

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