ICD-10-CM 2027 diagnosis code

F55Abuse of non-psychoactive substances

Not billable — use a more specific code

F55 is a header code, so it can't be reported by itself. Choose one of the 6 more specific codes beneath it.

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 F55

F55 is the ICD-10-CM diagnosis code for abuse of non-psychoactive substances. It belongs to block F50-F59 (behavioral syndromes associated with physiological disturbances and physical factors) and chapter 5 (mental, Behavioral and Neurodevelopmental disorders). It is a header code, so it can't be reported by itself; one of its 6 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: F55.0 (antacids), F55.1 (remedies), F55.2 (laxatives), F55.3 (hormones), F55.4 (vitamins) and F55.8 (substances).

The conditions in its Excludes2 note aren't part of F55, but may be coded alongside it if the patient has both: abuse of psychoactive substances (F10-F19).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under F55

Coding notes

Excludes2Not included here — may be reported together if both conditions exist

abuse of psychoactive substances (F10-F19)

Notes that apply from higher levels

Instructions written at a parent level also apply to F55.

Broader instructions also apply from Chapter 5: Mental, Behavioral and Neurodevelopmental disorders.

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 F55

Is F55 billable?: No. F55 is a header code. Report one of its more specific subcodes instead.