F15.94
BillableOther stimulant use, unspecified with stimulant-induced mood disorder
Last updated: FY2026 ICD-10-CM (Oct 1, 2025 – Sep 30, 2026) | CMS-HCC V28 (100% phase-in, PY2026)
Is F15.94 an HCC code?
Yes. F15.94 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 F15.94
For F15.94 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 F15.94 during that encounter — not just copy-forwarded from a problem list.
What This Code Means
F15.94 is the ICD-10-CM diagnosis code for other stimulant use, unspecified with stimulant-induced mood disorder. A condition where stimulant drug use causes mood disorders such as depression or mania in someone with unspecified pattern of use. F15.94 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, F15.94 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, F15.94 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.
Specify whether the mood disorder is depressive or manic if documented in the clinical record. Because F15.94 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 F15.94 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Specify whether the mood disorder is depressive or manic if documented in the clinical record
- •This code assumes the mood disorder is directly caused by stimulant use rather than a pre-existing condition
Clinical Significance
Stimulant use, unspecified with stimulant-induced mood disorder captures mood disturbances directly caused by stimulant use when the use pattern is not fully characterized. Stimulants can induce both manic and depressive symptoms, and these mood changes significantly impact treatment planning and recovery. Accurate capture ensures appropriate resource allocation for this dual condition.
Documentation Requirements
- ✓Documentation of stimulant use
- ✓Clinical description of mood disorder: depressive, manic, or mixed features
- ✓Clear documentation that mood symptoms are induced by stimulant use
- ✓Temporal relationship between stimulant use and mood symptoms
- ✓Query to provider regarding abuse vs. dependence and specific mood disorder type
Commonly Confused Codes
- •F15.24 — Stimulant dependence with mood disorder; use when dependence is documented
- •F15.14 — Stimulant abuse with mood disorder; use when abuse is documented
- •F32.9 — Major depressive disorder, single episode, unspecified; primary depression
- •F31.9 — Bipolar disorder, unspecified; primary bipolar disorder