T50.6 — Poisoning by, adverse effect of and underdosing of antidotes and chelating agents
Is T50.6 billable?
No — T50.6 is a non-billable header code. T50.6 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 T50.6.
Billable codes under this header
- T50.6X1APoisoning by antidotes and chelating agents, accidental (unintentional), initial encounter
- T50.6X1DPoisoning by antidotes and chelating agents, accidental (unintentional), subsequent encounter
- T50.6X1SPoisoning by antidotes and chelating agents, accidental (unintentional), sequela
- T50.6X2APoisoning by antidotes and chelating agents, intentional self-harm, initial encounter
- T50.6X2DPoisoning by antidotes and chelating agents, intentional self-harm, subsequent encounter
- T50.6X2SPoisoning by antidotes and chelating agents, intentional self-harm, sequela
- T50.6X3APoisoning by antidotes and chelating agents, assault, initial encounter
- T50.6X3DPoisoning by antidotes and chelating agents, assault, subsequent encounter
- T50.6X3SPoisoning by antidotes and chelating agents, assault, sequela
- T50.6X4APoisoning by antidotes and chelating agents, undetermined, initial encounter
- T50.6X4DPoisoning by antidotes and chelating agents, undetermined, subsequent encounter
- T50.6X4SPoisoning by antidotes and chelating agents, undetermined, sequela
- T50.6X5AAdverse effect of antidotes and chelating agents, initial encounter
- T50.6X5DAdverse effect of antidotes and chelating agents, subsequent encounter
- T50.6X5SAdverse effect of antidotes and chelating agents, sequela
- T50.6X6AUnderdosing of antidotes and chelating agents, initial encounter
- T50.6X6DUnderdosing of antidotes and chelating agents, subsequent encounter
- T50.6X6SUnderdosing of antidotes and chelating agents, sequela
T50.6 at a glance
| Code | T50.6 |
|---|---|
| Description | Poisoning by, adverse effect of and underdosing of antidotes and chelating agents |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Inclusion terms
Alternative wording in documentation that is classified to T50.6.
- Poisoning by, adverse effect of and underdosing of alcohol deterrents
Excludes1 — never code together — inherited from T36-T50
The conditions below can never be reported together with T50.6 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-)
Code first — inherited from T36-T50
The underlying condition below must be sequenced before T50.6. T50.6 describes a manifestation and cannot be the principal or first-listed diagnosis.
Use additional code — inherited from Chapter 19
Report an additional code alongside T50.6 to fully describe the condition. T50.6 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 T50.6 to fully describe the condition. T50.6 is sequenced first.
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of T50.6, but a patient may have both at the same time. When documentation supports it, T50.6 and the excluded code may both be reported.
Excludes2 — not included here — inherited from T36-T50
The conditions below are not part of T50.6, but a patient may have both at the same time. When documentation supports it, T50.6 and the excluded code may both be reported.
What codes fall under T50.6? (1)
How long has T50.6 existed?
T50.6 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.
What other codes are in the T50 family? (12)
- T50.0Poisoning by, adverse effect of and underdosing of mineralocorticoids and their antagonistsnot billable
- T50.1Poisoning by, adverse effect of and underdosing of loop [high-ceiling] diureticsnot billable
- T50.2Poisoning by, adverse effect of and underdosing of carbonic-anhydrase inhibitors, benzothiadiazides and other diureticsnot billable
- T50.3Poisoning by, adverse effect of and underdosing of electrolytic, caloric and water-balance agentsnot billable
- T50.4Poisoning by, adverse effect of and underdosing of drugs affecting uric acid metabolismnot billable
- T50.5Poisoning by, adverse effect of and underdosing of appetite depressantsnot billable
- T50.7Poisoning by, adverse effect of and underdosing of analeptics and opioid receptor antagonistsnot billable
- T50.8Poisoning by, adverse effect of and underdosing of diagnostic agentsnot billable
- T50.APoisoning by, adverse effect of and underdosing of bacterial vaccinesnot billable
- T50.BPoisoning by, adverse effect of and underdosing of viral vaccinesnot billable
- T50.ZPoisoning by, adverse effect of and underdosing of other vaccines and biological substancesnot billable
- T50.9Poisoning by, adverse effect of and underdosing of other and unspecified drugs, medicaments and biological substancesnot billable