T38.99 — Poisoning by, adverse effect of and underdosing of other hormone antagonists
Is T38.99 billable?
No — T38.99 is a non-billable header code. T38.99 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 18 billable codes beneath T38.99.
Billable codes under this header
- T38.991APoisoning by other hormone antagonists, accidental (unintentional), initial encounter
- T38.991DPoisoning by other hormone antagonists, accidental (unintentional), subsequent encounter
- T38.991SPoisoning by other hormone antagonists, accidental (unintentional), sequela
- T38.992APoisoning by other hormone antagonists, intentional self-harm, initial encounter
- T38.992DPoisoning by other hormone antagonists, intentional self-harm, subsequent encounter
- T38.992SPoisoning by other hormone antagonists, intentional self-harm, sequela
- T38.993APoisoning by other hormone antagonists, assault, initial encounter
- T38.993DPoisoning by other hormone antagonists, assault, subsequent encounter
- T38.993SPoisoning by other hormone antagonists, assault, sequela
- T38.994APoisoning by other hormone antagonists, undetermined, initial encounter
- T38.994DPoisoning by other hormone antagonists, undetermined, subsequent encounter
- T38.994SPoisoning by other hormone antagonists, undetermined, sequela
- T38.995AAdverse effect of other hormone antagonists, initial encounter
- T38.995DAdverse effect of other hormone antagonists, subsequent encounter
- T38.995SAdverse effect of other hormone antagonists, sequela
- T38.996AUnderdosing of other hormone antagonists, initial encounter
- T38.996DUnderdosing of other hormone antagonists, subsequent encounter
- T38.996SUnderdosing of other hormone antagonists, sequela
T38.99 at a glance
| Code | T38.99 |
|---|---|
| Description | Poisoning by, adverse effect of and underdosing of other hormone antagonists |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Excludes1 — never code together — inherited from T36-T50
The conditions below can never be reported together with T38.99 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- toxic reaction to local anesthesia in pregnancy (O29.3-)
Excludes1 — never code together — inherited from T38
The conditions below can never be reported together with T38.99 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Code first — inherited from T36-T50
The underlying condition below must be sequenced before T38.99. T38.99 describes a manifestation and cannot be the principal or first-listed diagnosis.
Use additional code — inherited from Chapter 19
Report an additional code alongside T38.99 to fully describe the condition. T38.99 is sequenced first.
- code to identify any retained foreign body, if applicable (Z18.-)
Use additional code — inherited from T36-T50
Report an additional code alongside T38.99 to fully describe the condition. T38.99 is sequenced first.
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of T38.99, but a patient may have both at the same time. When documentation supports it, T38.99 and the excluded code may both be reported.
Excludes2 — not included here — inherited from T36-T50
The conditions below are not part of T38.99, but a patient may have both at the same time. When documentation supports it, T38.99 and the excluded code may both be reported.
What codes fall under T38.99? (6)
- T38.991Poisoning by other hormone antagonists, accidental (unintentional)not billable
- T38.992Poisoning by other hormone antagonists, intentional self-harmnot billable
- T38.993Poisoning by other hormone antagonists, assaultnot billable
- T38.994Poisoning by other hormone antagonists, undeterminednot billable
- T38.995Adverse effect of other hormone antagonistsnot billable
- T38.996Underdosing of other hormone antagonistsnot billable
How long has T38.99 existed?
T38.99 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.