F18.121 is the authoritative medical code for Inhalant abuse with intoxication delirium. This classification is used in medical billing and clinical recording to specify the clinical criteria for inhalant abuse with intoxication delirium (ICD-10-CM F18.121), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Official Registry Overview & Definition
Inhalant abuse with intoxication delirium is a billable ICD-10-CM diagnosis code F18.121. Includes: volatile solvents. Excludes1 (not coded here): inhalant dependence F18.2-; inhalant use, unspecified F18.9-.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for F18.121 in the official ICD-10-CM tabular list.
Includes
Conditions the official ICD-10-CM tabular list includes under this code.
Excludes1 — Not Coded Here
Conditions that can never be reported with this code; the two are mutually exclusive.
- inhalant dependence F18.2-
- inhalant use, unspecified F18.9-
Frequently Asked Questions (FAQ) & Clinical Guidance
What can't be coded together with F18.121?
Per Excludes1 instructions, F18.121 must not be reported with: inhalant dependence (F18.2-); inhalant use, unspecified (F18.9-).
Codes in This Family (40)
Official ICD-10-CM classifications in the same code family as F18.121, with their registry titles.
- F18 — Inhalant related disorders
- F18.1 — Inhalant abuse
- F18.10 — Inhalant abuse, uncomplicated
- F18.11 — Inhalant abuse, in remission
- F18.12 — Inhalant abuse with intoxication
- F18.120 — Inhalant abuse with intoxication, uncomplicated
- F18.129 — Inhalant abuse with intoxication, unspecified
- F18.14 — Inhalant abuse with inhalant-induced mood disorder
- F18.15 — Inhalant abuse with inhalant-induced psychotic disorder
- F18.150 — Inhalant abuse with inhalant-induced psychotic disorder with delusions
- F18.151 — Inhalant abuse with inhalant-induced psychotic disorder with hallucinations
- F18.159 — Inhalant abuse with inhalant-induced psychotic disorder, unspecified
- F18.17 — Inhalant abuse with inhalant-induced dementia
- F18.18 — Inhalant abuse with other inhalant-induced disorders
- F18.180 — Inhalant abuse with inhalant-induced anxiety disorder
- F18.188 — Inhalant abuse with other inhalant-induced disorder
- F18.19 — Inhalant abuse with unspecified inhalant-induced disorder
- F18.2 — Inhalant dependence
- F18.20 — Inhalant dependence, uncomplicated
- F18.21 — Inhalant dependence, in remission
- F18.22 — Inhalant dependence with intoxication
- F18.220 — Inhalant dependence with intoxication, uncomplicated
- F18.221 — Inhalant dependence with intoxication delirium
- F18.229 — Inhalant dependence with intoxication, unspecified
- F18.24 — Inhalant dependence with inhalant-induced mood disorder
- F18.25 — Inhalant dependence with inhalant-induced psychotic disorder
- F18.250 — Inhalant dependence with inhalant-induced psychotic disorder with delusions
- F18.251 — Inhalant dependence with inhalant-induced psychotic disorder with hallucinations
- F18.259 — Inhalant dependence with inhalant-induced psychotic disorder, unspecified
- F18.27 — Inhalant dependence with inhalant-induced dementia
- F18.28 — Inhalant dependence with other inhalant-induced disorders
- F18.280 — Inhalant dependence with inhalant-induced anxiety disorder
- F18.288 — Inhalant dependence with other inhalant-induced disorder
- F18.29 — Inhalant dependence with unspecified inhalant-induced disorder
- F18.9 — Inhalant use, unspecified
- F18.90 — Inhalant use, unspecified, uncomplicated
- F18.91 — Inhalant use, unspecified, in remission
- F18.92 — Inhalant use, unspecified with intoxication
- F18.920 — Inhalant use, unspecified with intoxication, uncomplicated
- F18.921 — Inhalant use, unspecified with intoxication with delirium
Indexed Clinical Terms (3)
Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code.
- Abuse, drug NEC (non-dependent), inhalant, with, intoxication, with delirium
- Delirium, delirious (acute or subacute) (not alcohol- or drug-induced), due to (secondary to), inhalant intoxication (acute), in, abuse
- Disorder (of), inhalant use, mild, with, inhalant intoxication delirium
Related Codes & Numerical Sequence (Crawl Map)
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures:
ICD Code F13.121
Sedative, hypnotic or anxiolytic abuse with intoxication delirium