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T38.6

T38.6Poisoning by, adverse effect of and underdosing of antigonadotrophins, antiestrogens, antiandrogens, not elsewhere classified

Non-billable headerICD-10-CM

T38.6 is a non-billable header ICD-10-CM code for poisoning by, adverse effect of and underdosing of antigonadotrophins, antiestrogens, antiandrogens, not elsewhere classified. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.

This code requires a 7th character

The appropriate 7th character is to be added to each code from category T38

A
initial encounter
D
subsequent encounter
S
sequela

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

  • Poisoning by, adverse effect of and underdosing of tamoxifen

Other codes that can never be billed with T38.6

These codes carry an Excludes1 note pointing at T38.6. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading T38.6 alone.

  • T48.0Poisoning by, adverse effect of and underdosing of oxytocic drugs
  • T45.1Poisoning by, adverse effect of and underdosing of antineoplastic and immunosuppressive drugs

Risk adjustment

T38.6 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Code to one of these instead T38.6

1 child code. Green means billable.

Related codes at this level

Codes that share T38. If T38.6 is not quite right, the correct code is usually one of these.

Questions about T38.6

Is T38.6 a billable ICD-10-CM code?
No. T38.6 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does T38.6 sit in the tabular list?
Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Poisoning by, adverse effects of and underdosing of drugs, medicaments and biological substances (T36-T50).
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.