F15.980
BillableOther stimulant use, unspecified with stimulant-induced anxiety disorder
Last updated: FY2026 ICD-10-CM (Oct 1, 2025 – Sep 30, 2026) | CMS-HCC V28 (100% phase-in, PY2026)
Is F15.980 an HCC code?
Yes. F15.980 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 F15.980
For F15.980 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 F15.980 during that encounter — not just copy-forwarded from a problem list.
What This Code Means
F15.980 is the ICD-10-CM diagnosis code for other stimulant use, unspecified with stimulant-induced anxiety disorder. A condition where stimulant drug use causes anxiety symptoms in someone with unspecified pattern of stimulant use. F15.980 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, F15.980 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, F15.980 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.
Document the severity and type of anxiety symptoms (generalized, panic, social) when possible. Because F15.980 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 F15.980 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Document the severity and type of anxiety symptoms (generalized, panic, social) when possible
- •Distinguish between anxiety caused by stimulant use versus pre-existing anxiety disorder
Clinical Significance
Stimulant use, unspecified with stimulant-induced anxiety disorder captures anxiety complications from stimulant use when the use pattern is not characterized. Stimulant-induced anxiety is among the most common substance-related complications and can present as panic attacks, generalized anxiety, or social anxiety. This code supports risk adjustment while flagging the need for use pattern clarification.
Documentation Requirements
- ✓Documentation of stimulant use
- ✓Clinical description of anxiety symptoms
- ✓Causal relationship between stimulant use and anxiety documented
- ✓Exclusion of pre-existing primary anxiety disorder
- ✓Query to provider regarding abuse vs. dependence status
Commonly Confused Codes
- •F15.180 — Stimulant abuse with anxiety disorder; use when abuse is documented
- •F15.280 — Stimulant dependence with anxiety disorder; use when dependence is documented
- •F41.1 — Generalized anxiety disorder; primary anxiety, not substance-induced
- •F41.0 — Panic disorder; primary panic, not substance-induced