F18.99

HCC Category Mapping

What This Code Means

A person with unspecified inhalant use who has an unspecified disorder caused by inhalant exposure, when the exact nature of the disorder is not documented.

Coding Tips

• •This is a less specific code; attempt to identify the specific inhalant-induced disorder when possible
• •Use only when documentation does not support a more specific diagnosis code

Clinical Significance

This code captures an unspecified substance-induced disorder from inhalant use, where the specific nature of the complication is not documented. While less specific codes should be avoided when possible, this code still reflects that the substance use is causing identifiable clinical complications. Querying for additional specificity is recommended to support optimal risk adjustment.

Documentation Requirements

• ✓Provider documentation of inhalant use, specifying the type of inhalant when known (e.g., toluene, gasoline, aerosol propellants, nitrites)
• ✓Documentation of substance use pattern; query provider to determine if abuse or dependence criteria are met for more specific coding
• ✓Assessment and plan addressing the substance use disorder with treatment approach documented

Commonly Confused Codes