What is ICD-10 code F12.929?

F12.929 is the ICD-10-CM diagnosis code for Cannabis use, unspecified with intoxication, unspecified. A person who uses cannabis without dependence and experiences intoxication, but the specific characteristics of the intoxication are not documented. It belongs to the ICD-10-CM chapter for mental, behavioral and neurodevelopmental disorders (f01-f99). F12.929 is a billable code, meaning it can be reported on a claim as a primary or secondary diagnosis when supported by documentation. F12.929 is part of the FY2026 ICD-10-CM code set published by the CMS National Center for Health Statistics and used on Medicare, Medicaid, and commercial claims in the United States.

Yes. F12.929 is a billable ICD-10-CM code that can be reported on professional and institutional claims as a primary or secondary diagnosis when the provider documentation supports the specific condition described. Billable codes in ICD-10-CM are coded to the highest level of specificity available for the documented diagnosis. F12.929 is current for fiscal year 2026 and remains in the active CMS ICD-10-CM code set published by the National Center for Health Statistics.

What is the V28 vs V24 difference for F12.929?

CMS phased in the V28 risk adjustment model over payment years 2024 (33%), 2025 (67%), and 2026 (100%), replacing V24. V28 consolidates HCC categories, removes some lower-acuity conditions, and recalibrates RAF weights across the entire model. F12.929 was a payment HCC under V24 (Drug/Alcohol Dependence) but the V28 recalibration removed it from the risk adjustment model. Both models can still appear in legacy data and in payer-specific lookback periods.

What should coders know when reporting F12.929?

This is a less specific code; clarify whether intoxication is complicated by perceptual disturbances before using this code Use only when documentation does not provide sufficient detail to assign F12.920 or F12.922 Because F12.929 maps to a payment HCC, the documentation must also satisfy MEAT criteria (Monitor, Evaluate, Assess, or Treat) for the encounter to count toward the patient's risk adjustment score.

F12.929: Cannabis use, unspecified with intoxication, unspecified — ICD-10 | Drug/Alcohol

ICD-10-CM Code View

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Code lookupF12.929Effective periodFY2026 Apr Update (Apr 1-Sep 30)

FY 2026 Apr update / Mental, Behavioral and Neurodevelopmental disorders (F01-F99) / Mental and behavioral disorders due to psychoactive substance use (F10-F19)

F12.929

Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidance

Cannabis use, unspecified with intoxication, unspecified

A person who uses cannabis without dependence and experiences intoxication, but the specific characteristics of the intoxication are not documented.

Buddy Insight

CMS-HCC V28

Not risk-adjusted for this model/period.

RAF 0

CMS-HCC V24

Mapped

HCC 55

Drug/Alcohol Dependence

RAF 0.334

ACA/HHS

Not risk-adjusted for this model/period.

RAF 0

ESRD/PACE

Mapped

HCC 55

Drug/Alcohol Dependence

RAF 0.0

RXHCC

Not risk-adjusted for this model/period.

RAF 0

Code Trumping

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Code Book Path

Official

F12.9Cannabis use, unspecified

F12.92Cannabis use, unspecified with intoxication

F12.929Cannabis use, unspecified with intoxication, unspecified

Inclusion Terms

Official

ICD-10-CM does not list inclusion terms for F12.929 in this effective period.

Excludes 2

Official

ICD-10-CM does not list Excludes 2 notes for F12.929 in this effective period.

Related Child Codes

Official

F12.920Cannabis use, unspecified with intoxication, uncomplicated

F12.921Cannabis use, unspecified with intoxication delirium

F12.922Cannabis use, unspecified with intoxication with perceptual disturbance

Includes

Official

ICD-10-CM does not list Includes notes for F12.929 in this effective period.

Excludes 1

Official

ICD-10-CM does not list Excludes 1 notes for F12.929 in this effective period.

Code First

Official

ICD-10-CM does not list Code First sequencing instructions for F12.929 in this effective period.

Use Additional

Official

ICD-10-CM does not list Use Additional Code instructions for F12.929 in this effective period.

Code Also

Official

ICD-10-CM does not list Code Also instructions for F12.929 in this effective period.

Buddy Documentation Tip

HCC Buddy guidance

Documentation of cannabis use

Evidence of intoxication at the encounter

Basic clinical findings supporting intoxication

Documentation of why more specific information is unavailable

MEAT Support

HCC Buddy guidance

Documentation of cannabis use

Evidence of intoxication at the encounter

Basic clinical findings supporting intoxication

Documentation of why more specific information is unavailable

Audit Caution

HCC Buddy guidance

Defaulting to this doubly-unspecified code without querying for additional clinical detail

Using this code when documentation supports a more specific intoxication type or use disorder severity

Not distinguishing this from F12.90 (uncomplicated use without intoxication)

Assuming all cannabis-related encounters involve intoxication

Common Mistakes

HCC Buddy guidance

F12.920 — Cannabis use, unspecified with intoxication, uncomplicated; use when documentation confirms uncomplicated intoxication

F12.921 — Cannabis use, unspecified with intoxication delirium; use when delirium is present

F12.922 — Cannabis use, unspecified with intoxication with perceptual disturbance; use when perceptual changes occur

F12.90 — Cannabis use, unspecified, uncomplicated; use when no intoxication is present

Last updated: FY2026 ICD-10-CM Apr update, Apr 1, 2026 through Sep 30, 2026. CMS-HCC V28 is 100% phased in for payment year 2026.

Is F12.929 an HCC code?

Yes. F12.929 maps to Drug/Alcohol Dependence under the V24 model but is not retained in V28.

HCC Category Mapping

V24HCC 55, Drug/Alcohol Dependence

0.334

ESRDHCC 55, Drug/Alcohol Dependence

0.000

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.

Work F12.929 in the Code Book — tabular path, V28 RAF, and MEAT checklist →

MEAT Criteria for F12.929

For F12.929to 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 F12.929 during that encounter, not just copy-forwarded from a problem list.

Coder workflow notes

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What This Code Means

F12.929 is the ICD-10-CM diagnosis code for cannabis use, unspecified with intoxication, unspecified. A person who uses cannabis without dependence and experiences intoxication, but the specific characteristics of the intoxication are not documented. F12.929 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 older CMS-HCC V24 model, F12.929 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 is a less specific code; clarify whether intoxication is complicated by perceptual disturbances before using this code. Because F12.929 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 F12.929 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.

Coding Tips

•This is a less specific code; clarify whether intoxication is complicated by perceptual disturbances before using this code
•Use only when documentation does not provide sufficient detail to assign F12.920 or F12.922

Clinical Significance

Cannabis use, unspecified with unspecified intoxication is the least specific code for cannabis intoxication, used when neither the severity of the use disorder nor the specific features of intoxication are documented. This code represents a dual documentation gap and should prompt coders to query providers for both the severity of cannabis use and the nature of intoxication symptoms.

Documentation Requirements

✓Documentation of cannabis use
✓Evidence of intoxication at the encounter
✓Basic clinical findings supporting intoxication
✓Documentation of why more specific information is unavailable

Commonly Confused Codes

•F12.920: Cannabis use, unspecified with intoxication, uncomplicated; use when documentation confirms uncomplicated intoxication
•F12.921: Cannabis use, unspecified with intoxication delirium; use when delirium is present
•F12.922: Cannabis use, unspecified with intoxication with perceptual disturbance; use when perceptual changes occur
•F12.90: Cannabis use, unspecified, uncomplicated; use when no intoxication is present