ICD-10-CM 2027 diagnosis code
T38.4X5Adverse effect of oral contraceptives
T38.4X5 is a header code, so it can't be reported by itself. Choose one of the 3 more specific codes beneath it and add the required 7th character.
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About T38.4X5
T38.4X5 is the ICD-10-CM diagnosis code for adverse effect of oral contraceptives. It belongs to category T38 (poisoning by, adverse effect of and underdosing of hormones and their synthetic substitutes and antagonists, not elsewhere classified), block T36-T50 (poisoning by, adverse effects of and underdosing of drugs, medicaments and biological substances) and chapter 19 (injury, poisoning and certain other consequences of external causes). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.
Within T38.4X (poisoning by, adverse effect of and underdosing of oral contraceptives), T38.4X5 is specifically for adverse effect of oral contraceptives. Related codes cover poisoning by oral contraceptives, accidental (unintentional) (T38.4X1), poisoning by oral contraceptives, intentional self-harm (T38.4X2), poisoning by oral contraceptives, assault (T38.4X3), poisoning by oral contraceptives, undetermined (T38.4X4) and underdosing of oral contraceptives (T38.4X6).
Codes in this range require a 7th character: A for initial encounter, D for subsequent encounter and S for sequela. Use placeholder "X" characters to fill any empty positions before the 7th character.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
7th character
The appropriate 7th character is to be added to each code from category T38
Notes that apply from higher levels
Instructions written at a parent level also apply to T38.4X5.
Broader instructions also apply from T36-T50 Poisoning by, adverse effects of and underdosing of drugs, medicaments and biological substances and Chapter 19: Injury, poisoning and certain other consequences of external causes.
Table of Drugs & Neoplasms entries
- Antifertility pill — Adverse effect
- Contraceptive (oral) — Adverse effect
- Demulen — Adverse effect
- Enovid — Adverse effect
- Ethinylestradiol, ethinyloestradiol › with › levonorgestrel — Adverse effect
- Ethinylestradiol, ethinyloestradiol › with › norethisterone — Adverse effect
- Ethynodiol — Adverse effect
- Ethynodiol › with mestranol diacetate — Adverse effect
- Etinodiol — Adverse effect
- Etynodiol — Adverse effect
- Levonorgestrel — Adverse effect
- Lynestrenol — Adverse effect
- Norethindrone — Adverse effect
- Norethisterone (acetate) (enantate) — Adverse effect
- Norgestrel — Adverse effect
- Norgestrienone — Adverse effect
- Norlestrin — Adverse effect
- Norlutin — Adverse effect
- Oracon — Adverse effect
- Oral contraceptives — Adverse effect
- Ortho-Novum — Adverse effect
- Ovral — Adverse effect
- Ovulen — Adverse effect
- Progestin › oral contraceptive — Adverse effect
- Quingestanol — Adverse effect
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about T38.4X5
Is T38.4X5 billable?
- No. T38.4X5 is a header code. Report one of its more specific subcodes instead.