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F18.288 ICD-10-CM Code: Inhalant dependence with other inhalant-induced disorder

F18.288 maps to CMS-HCC V28 137. A source-labeled RAF reference is available. Confirm the documented diagnosis and applicable coding requirements. MEAT criteria · RAF Calculator · free HCC coding tools

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Code lookupF18.288

FY 2026 Apr update / Mental, Behavioral and Neurodevelopmental disorders (F01-F99) / Mental and behavioral disorders due to psychoactive substance use (F10-F19)

F18.288

Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidance

Inhalant dependence with other inhalant-induced disorder

A person dependent on inhalants experiencing other specified mental or physical health problems caused by their inhalant use that don't fit other categories.

Buddy the Bee presenting code insight

Buddy Insight

This code captures other specified substance-induced disorders from inhalant dependence that do not fit into the standard categories of psychosis, mood, anxiety, or sleep disorders.

OverviewRisk ModelsCode BookDocumentationAuditNotesEdition comparison

CMS-HCC V28

HCC 137

Coefficient HCC 137: 0.424 (Community Non-Dual Aged (CNA))

CMS-HCC V24

Historical

Historical

Not used for CY2026 payment

ACA/HHS

HCC 082

Code-level coefficient reference

ESRD/PACE

HCC 55

Code-level coefficient reference

RXHCC

N/A

—

Not mapped

Code Book Path

Official
F18.2Inhalant dependenceF18.28Inhalant dependence with other inhalant-induced disordersF18.288Inhalant dependence with other inhalant-induced disorder

Inclusion Terms

Official
  • Inhalant use disorder, moderate, with inhalant-induced mild neurocognitive disorder
  • Inhalant use disorder, severe, with inhalant-induced mild neurocognitive disorder

Excludes 2

Official
  • symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)Inherited from F01-F99

Related Codes

Official
F18.280Inhalant dependence with inhalant-induced anxiety disorder

Includes

Official
  • disorders of psychological developmentInherited from F01-F99, F18
  • volatile solventsInherited from F01-F99, F18

Excludes 1

Official
  • inhalant abuse (F18.1-)Inherited from F18.2
  • inhalant use, unspecified (F18.9-)Inherited from F18.2

Code First

Official

No Code First sequencing instructions are included in this display for F18.288. Check the code and parent instructions in the Code Book.

Use Additional

Official

No Use Additional Code instructions are included in this display for F18.288. Check the code and parent instructions in the Code Book.

Code Also

Official

No Code Also instructions are included in this display for F18.288. Check the code and parent instructions in the Code Book.

Buddy Documentation Tip

HCC Buddy guidance
Provider documentation of inhalant use, specifying the type of inhalant when known (e.g., toluene, gasoline, aerosol propellants, nitrites)
Clinical documentation supporting dependence criteria: tolerance, withdrawal symptoms, compulsive use despite harm, or inability to control use
Description of the specific substance-induced disorder that does not fit standard categories (e.g., movement disorder, olfactory disorder, obsessive-compulsive features)
Assessment and plan addressing the substance use disorder with treatment approach documented

MEAT Support

HCC Buddy guidance
Provider documentation of inhalant use, specifying the type of inhalant when known (e.g., toluene, gasoline, aerosol propellants, nitrites)
Clinical documentation supporting dependence criteria: tolerance, withdrawal symptoms, compulsive use despite harm, or inability to control use
Description of the specific substance-induced disorder that does not fit standard categories (e.g., movement disorder, olfactory disorder, obsessive-compulsive features)
Assessment and plan addressing the substance use disorder with treatment approach documented

Audit Caution

HCC Buddy guidance
Failing to identify inhalant use as the specific substance category — F18 codes are specifically for inhalants and should not be used for other volatile substance exposures like occupational chemical exposure
Confusing dependence with abuse — dependence requires documented tolerance, withdrawal, compulsive use, or inability to control use, not just a pattern of harmful substance use
Not documenting the encounter as addressing the substance use disorder in the assessment and plan — the condition must be actively managed or monitored during the visit to support coding

Common Mistakes

HCC Buddy guidance
F18.10 (Inhalant abuse, uncomplicated) — abuse indicates a less severe use pattern without meeting full dependence criteria; dependence requires documented tolerance, withdrawal, or compulsive use
F18.920-F18.99 (Inhalant use, unspecified) — use when the pattern of use (abuse vs. dependence) is not documented; dependence codes require explicit documentation of dependence
F19.x codes (Other psychoactive substance use) — F19 is for substances other than inhalants; use F18 specifically when the substance is an inhalant

Current with CMS: FY2026 ICD-10-CM Apr 1 update (effective Apr 1 – Sep 30, 2026) · CMS-HCC V28, 100% phased in for payment year 2026. FY2027 code set already staged for October 1, 2026. How HCC Buddy stays current →

Is F18.288 an HCC code?

Yes. F18.288 (Inhalant dependence with other inhalant-induced disorder) maps to HCC 137, Drug Use Disorder, Moderate/Severe, or Drug Use with Non-Psychotic Complications under the CMS-HCC V28 risk adjustment model, with a source-labeled community non-dual aged reference coefficient of 0.424. Source-labeled code-level coefficients are references, not member totals. Actual contribution depends on complete member context, hierarchy and cleanup rules, interactions, and model year. HCC Buddy's RAF Calculator supports CMS-HCC V28 PY2026 and shows no score unless every required source and calculation check passes. It is billable for payment year 2026.

Coder answer: F18.288 is billable and maps to V28 HCC 137, Drug Use Disorder, Moderate/Severe, or Drug Use with Non-Psychotic Complications. Open it in the Code Book for the tabular path, RAF, and MEAT checklist.

Code
F18.288
Description
Inhalant dependence with other inhalant-induced disorder
HCC (V28)
HCC 137 — Drug Use Disorder, Moderate/Severe, or Drug Use with Non-Psychotic Complications
RAF reference coefficient
0.424
Billable
Yes
Payment year
2026

HCC Category Mapping

V28HCC 137, Drug Use Disorder, Moderate/Severe, or Drug Use with Non-Psychotic Complications
0.424
ESRDHCC 55, Substance Use Disorder/Moderate/Severe/Substance Use with Complications
Not separately weighted

These are source-labeled model coefficients, not member totals. A category may still be removed by hierarchy or model cleanup rules. Weights are not directly comparable across models: CMS-HCC V28 and V24 use Community, Non-Dual, Aged; ESRD uses the dialysis continuing-enrollee model; RxHCC is the Part D continuing-enrollee, non-low-income, aged weight (a larger scale than CMS-HCC). ACA/HHS has no single weight — it varies by metal level. Actual per-patient RAF contribution depends on member context, hierarchy and cleanup rules, interactions, and the model year used by the payer. V28 is the CMS-HCC model phased in over payment years 2024–2026; V24 remains available for historical review.

Work F18.288 in the Code Book — tabular path, V28 RAF reference, and MEAT checklist →

MEAT review for F18.288

For F18.288, confirm that the documentation supports the diagnosis and meets the applicable coding, encounter, program and payer requirements. MEAT (Monitor, Evaluate, Assess, or Treat) is a review mnemonic, not a universal CMS coding rule.

  • MMonitor: signs, symptoms, disease progression, or lab trending documented in the note
  • EEvaluate: test results, medication response, or physical findings reviewed by the provider
  • AAssess: explicit mention in the assessment or plan with acknowledgment of status
  • TTreat: medication, referral, procedure, therapy, or counseling tied to the diagnosis

Coder workflow notes

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What This Code Means

F18.288 is the ICD-10-CM diagnosis code for inhalant dependence with other inhalant-induced disorder. A person dependent on inhalants experiencing other specified mental or physical health problems caused by their inhalant use that don't fit other categories. F18.288 sits in the ICD-10-CM chapter for mental, behavioral and neurodevelopmental disorders (f01-f99), within the section covering mental and behavioral disorders due to psychoactive substance use (f10-f19).

Under the CMS-HCC V28 risk adjustment model, F18.288 maps to Drug Use Disorder, Moderate/Severe, or Drug Use with Non-Psychotic Complications (HCC 137) with a source-labeled community, non-dual, aged reference coefficient of 0.424. For CY2026 non-PACE Medicare Advantage, CMS uses 100% of the 2024 CMS-HCC model (V28). PACE uses a separate model blend. Source-labeled code-level coefficients are references, not member totals. Actual contribution depends on complete member context, hierarchy and cleanup rules, interactions, and model year. HCC Buddy's RAF Calculator supports CMS-HCC V28 PY2026 and shows no score unless every required source and calculation check passes.

Use this code when inhalant dependence causes documented complications other than psychosis or dementia. For F18.288, confirm that the documentation supports the diagnosis and meets the applicable coding, encounter, program and payer requirements. MEAT (Monitor, Evaluate, Assess, or Treat) is a review mnemonic, not a universal CMS coding rule. When documentation is ambiguous, coders should issue a provider query rather than assume the highest-specificity variant.

HCC Buddy maintains structured V28 and V24 mapping, source-labeled coefficient references, and MEAT documentation criteria for F18.288 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.

Coding Tips

  • •Use this code when inhalant dependence causes documented complications other than psychosis or dementia
  • •Specify the type of disorder in documentation (e.g., anxiety, sleep disorder, mood disorder)

Clinical Significance

This code captures other specified substance-induced disorders from inhalant dependence that do not fit into the standard categories of psychosis, mood, anxiety, or sleep disorders. These may include movement disorders, neurocognitive changes, or other organ-specific complications. Accurate coding of these additional complications reflects the true clinical burden and supports appropriate risk adjustment.

Documentation Requirements

  • ✓Provider documentation of inhalant use, specifying the type of inhalant when known (e.g., toluene, gasoline, aerosol propellants, nitrites)
  • ✓Clinical documentation supporting dependence criteria: tolerance, withdrawal symptoms, compulsive use despite harm, or inability to control use
  • ✓Description of the specific substance-induced disorder that does not fit standard categories (e.g., movement disorder, olfactory disorder, obsessive-compulsive features)
  • ✓Assessment and plan addressing the substance use disorder with treatment approach documented

Commonly Confused Codes

  • •F18.10 (Inhalant abuse, uncomplicated): abuse indicates a less severe use pattern without meeting full dependence criteria; dependence requires documented tolerance, withdrawal, or compulsive use
  • •F18.920-F18.99 (Inhalant use, unspecified): use when the pattern of use (abuse vs. dependence) is not documented; dependence codes require explicit documentation of dependence
  • •F19.x codes (Other psychoactive substance use): F19 is for substances other than inhalants; use F18 specifically when the substance is an inhalant

Child Codes

F18.280Inhalant dependence with inhalant-induced anxiety disorder
HCC 137
F18.288Inhalant dependence with other inhalant-induced disorder
HCC 137

Code Hierarchy

└F18Inhalant related disorders└F18.2Inhalant dependence└F18.28Inhalant dependence with other inhalant-induced disorders└F18.288Inhalant dependence with other inhalant-induced disorder
└F18.288Inhalant dependence with other inhalant-induced disorder

Also searched as

  • F18 288
  • F18288

For F18.288, confirm that the documentation supports the diagnosis and meets the applicable coding, encounter, program and payer requirements. MEAT (Monitor, Evaluate, Assess, or Treat) is a review mnemonic, not a universal CMS coding rule.

F18.288 maps to CMS-HCC V28 category 137, Drug Use Disorder, Moderate/Severe, or Drug Use with Non-Psychotic Complications. See the ICD-10 to HCC mapping hub for how the V28 crosswalk works. The mapping identifies a payment HCC category for F18.288. Review its source-labeled HCC coefficient above, check the RAF Calculator with complete member context for CMS-HCC V28 PY2026, and confirm the documentation the chart needs before the code is submitted. HCC Buddy shows no RAF score unless every required source and calculation check passes.

Work F18.288 in HCC Buddy

Open F18.288 in the Code Book for the full Index-to-Tabular path, MEAT checklist, and V28 HCC mapping, or in the Encoder to code from a keyword search. Pro includes 7 days to try everything, no card required.

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