F15.93
BillableOther stimulant use, unspecified with withdrawal
Last updated: FY2026 ICD-10-CM (Oct 1, 2025 – Sep 30, 2026) | CMS-HCC V28 (100% phase-in, PY2026)
Is F15.93 an HCC code?
Yes. F15.93 maps to Drug Use Disorder/Substance Use Disorder, Moderate/Severe under the CMS-HCC V28 risk adjustment model (and Drug/Alcohol Dependence under V24).
HCC Category Mapping
RAF weights shown are the community, non-dual, aged base weights from the CMS risk adjustment model file. Actual per-patient RAF contribution depends on member segment, interactions, and the model year used by the payer. V28 is the CMS-HCC model phased in over payment years 2024–2026; V24 remains in use during the transition and for historical data.
MEAT Criteria for F15.93
For F15.93 to count as a valid HCC diagnosis in a given encounter, the provider's documentation must show MEAT: Monitor, Evaluate, Assess, or Treat. A diagnosis from a prior year does not carry forward automatically — it has to be re-documented and supported each calendar year.
- 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
Only one of M/E/A/T is required to support the code, but the documentation must be specific enough to show that the provider actually addressed F15.93 during that encounter — not just copy-forwarded from a problem list.
What This Code Means
F15.93 is the ICD-10-CM diagnosis code for other stimulant use, unspecified with withdrawal. A condition where someone uses stimulant drugs (like cocaine or amphetamines) and experiences withdrawal symptoms when they stop using them. F15.93 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, F15.93 maps to Drug Use Disorder/Substance Use Disorder, Moderate/Severe (HCC 137) with a community, non-dual, aged base RAF weight of 0.358. Under the older CMS-HCC V24 model, F15.93 maps to Drug/Alcohol Dependence (HCC 55) with a community, non-dual, aged base RAF weight of 0.334. V28 is the CMS-HCC risk adjustment model that reached 100% phase-in for payment year 2026, replacing V24 which was used during the PY2024–PY2025 transition.
This code indicates unspecified stimulant use with withdrawal; document specific withdrawal symptoms if available for more precise coding. Because F15.93 maps to a payment HCC, the provider's documentation must satisfy MEAT criteria (Monitor, Evaluate, Assess, or Treat) for the encounter to count toward the patient's Medicare Advantage risk adjustment score. 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, RAF weights, and MEAT documentation criteria for F15.93 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •This code indicates unspecified stimulant use with withdrawal; document specific withdrawal symptoms if available for more precise coding
- •Withdrawal symptoms may include fatigue, depression, anxiety, and sleep disturbances
Clinical Significance
Other stimulant use, unspecified with withdrawal captures withdrawal symptoms in a patient whose stimulant use pattern is not characterized as abuse or dependence. Stimulant withdrawal presents with profound fatigue, depression, increased appetite, and hypersomnia, and may include significant suicidal ideation. This code flags both the withdrawal syndrome and the need for substance use pattern clarification.
Documentation Requirements
- ✓Documentation of stimulant use history
- ✓Withdrawal symptoms documented: dysphoria, fatigue, vivid dreams, sleep changes, psychomotor changes, increased appetite
- ✓Temporal relationship to cessation or reduction of stimulant use
- ✓Assessment of depression and suicide risk during withdrawal
- ✓Query to provider to clarify abuse vs. dependence status
Excludes 1 — Do NOT code together
- other stimulant use, unspecified with intoxication (F15.92-)
Commonly Confused Codes
- •F15.23 — Stimulant dependence with withdrawal; use when dependence is documented
- •F15.13 — Stimulant abuse with withdrawal; use when abuse is documented (note: not a valid code — stimulant abuse with withdrawal does not exist in ICD-10-CM)
- •F15.920 — Stimulant use, unspecified with intoxication; opposite presentation
- •F14.93 — Cocaine use, unspecified with withdrawal; use when cocaine is specifically identified