F18.21
BillableInhalant dependence, in remission
HCC Category Mapping
V28HCC 137 — Drug Use Disorder/Substance Use Disorder, Moderate/Severe
0.358V24HCC 55 — Drug/Alcohol Dependence
0.334ESRDHCC 55 — Drug/Alcohol Dependence
0.000What This Code Means
A person who was dependent on inhalants but has successfully stopped using them and maintained abstinence for a sustained period.
Coding Tips
- •Document the length of remission when available (early vs sustained remission)
- •Remission codes indicate the patient is no longer actively using despite past dependence
Clinical Significance
Inhalant dependence in remission indicates a patient who has achieved recovery from inhalant dependence. Given the severe neurotoxic effects of chronic inhalant use, residual cognitive deficits, white matter changes, and organ damage may persist even in remission, requiring ongoing monitoring and rehabilitation.
Documentation Requirements
- ✓Documentation of prior inhalant dependence
- ✓Provider statement of remission status (early vs sustained)
- ✓Duration of remission
- ✓Monitoring plan for residual neurological and organ damage
- ✓Relapse prevention plan
- ✓Neurocognitive assessment results if available
Commonly Confused Codes
F18.20 — Inhalant dependence, uncomplicated; use for active dependenceF18.11 — Inhalant abuse, in remission; use when the prior condition was abuse not dependenceZ86.59 — Personal history of mental and behavioral disorders; less specific, loses HCC captureF18.90 — Inhalant use, unspecified; does not capture dependence or remission
Code Hierarchy
└F18Inhalant related disorders└F18.2Inhalant dependence└F18.21Inhalant dependence, in remission
└F18.21Inhalant dependence, in remission