2027 ICD-10-CM Diagnosis Code F55.8Abuse of other non-psychoactive substances
ICD-10-CM Codes›F01–F99›F50-F59›F55
- Billable — Valid for Submission
- Not Chronic
F55.8 is a billable ICD-10-CM diagnosis code for abuse of other non-psychoactive substances. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 894 through 897. Coders also document this condition as episode of harmful use of diuretic. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Miscellaneous mental and behavioral disorders/conditions.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Episode of harmful use of diuretic
- Episode of harmful use of non-psychotropic analgesic medication
- Harmful pattern of use of diuretic
- Harmful pattern of use of non-psychotropic analgesic medication
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to F55.8: its own notes plus those printed at F55 and Chapter 5. A note printed at a category, block or chapter applies to every code under it.
Includes
Further defines, or gives examples of, the content of the category.
- disorders of psychological development
Excludes2
Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Referenced in Other NotesGuidance
Instructional notes printed at other codes that name F55.8, its category, or a range that includes it.
Applicable To 1
These notes mention F55.8.
Excludes2 1
These codes carry an Excludes2 note naming F55.8: its condition is not part of those codes, and both may be reported when the patient has both.
- Block T36-T50 Poisoning by, adverse effect of and underdosing of drugs, medicaments and biological substancesabuse of non-dependence-producing substances (F55.-) names F55.-, which includes this code
Index to Diseases and InjuriesGuidance
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Drug Use and Addiction
Drugs are chemical substances that can change how your body and mind work. They include prescription medicines, over-the-counter medicines, alcohol, tobacco, and illegal drugs.
The full article covers:
- What are drugs?
- What is drug use?
- What is drug addiction?
- Does everyone who takes drugs become addicted?
- Who is at risk for drug addiction?
- What are the signs that someone has a drug problem?
- What are the treatments for drug addiction?
- Can drug use and addiction be prevented?
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert F55.8 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About F55.8Overview
What is the ICD-10 code for abuse of other non-psychoactive substances?
The ICD-10-CM code for abuse of other non-psychoactive substances is F55.8 (sometimes written as F558). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is F55.8 (Abuse of non-psychoactive substances) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report abuse of other non-psychoactive substances on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does F55.8 group to?
When abuse of other non-psychoactive substances is the principal diagnosis on an inpatient stay, it groups to MS-DRG 894, 897, 895, 896, with relative weights from 0.6272 to 1.6610 depending on complications. Higher weights mean higher Medicare reimbursement.
What is the ICD-9 equivalent of F55.8?
Under the General Equivalence Mappings, abuse of other non-psychoactive substances converts to ICD-9-CM 305.90 (drug abuse NEC-unspec), 305.91 (drug abuse NEC-contin), and 305.92 (drug abuse NEC-episodic). The mapping is approximate, so confirm the match fits the documentation.
