V28 HCC 138
Drug Use Disorder, Mild, Uncomplicated, Except Cannabis
Under the CMS-HCC V28 risk adjustment model (PY2026 Medicare Advantage), HCC 138 has a source-labeled community non-dual aged reference coefficient of 0.423, and 14 ICD-10-CM diagnosis codes appear in its official mapping. In the V28 hierarchy it is superseded by HCC 135, HCC 136, HCC 137 when a more severe category in the same disease group is also present.
RAF factors
The community factor varies by Medicaid and originally-disabled status; the institutional factor applies to long-term-institutional members. These are the CMS-HCC V28 PY2026 relative factors.
These are source-labeled code-level HCC coefficient references, not a full member score. Use the RAF Calculator with complete member context for CMS-HCC V28 PY2026. No score is shown unless every required source and calculation check passes.
V28 hierarchy
Trumped by: HCC 135, HCC 136, HCC 137 (a more severe category in the same disease group supersedes this one).
Supersedes: HCC 139 (this category is counted instead of these when they co-occur).
ICD-10-CM codes that map to HCC 138 (14)
ICD-10-CM codes in the official mapping for this category under CMS-HCC V28 PY2026. Open any code for its full description and coding guidance.
- F11.10Opioid abuse, uncomplicated
- F11.11Opioid abuse, in remission
- F13.10Sedative, hypnotic or anxiolytic abuse, uncomplicated
- F13.11Sedative, hypnotic or anxiolytic abuse, in remission
- F14.10Cocaine abuse, uncomplicated
- F14.11Cocaine abuse, in remission
- F15.10Other stimulant abuse, uncomplicated
- F15.11Other stimulant abuse, in remission
- F16.10Hallucinogen abuse, uncomplicated
- F16.11Hallucinogen abuse, in remission
- F18.10Inhalant abuse, uncomplicated
- F18.11Inhalant abuse, in remission
- F19.10Other psychoactive substance abuse, uncomplicated
- F19.11Other psychoactive substance abuse, in remission
Coder workflow notes
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Frequently asked questions
What is CMS-HCC V28 category 138?
HCC 138 is "Drug Use Disorder, Mild, Uncomplicated, Except Cannabis", a Hierarchical Condition Category in the CMS-HCC V28 risk adjustment model (100% phase-in for payment year 2026). 14 ICD-10-CM codes appear in its official mapping.
What reference coefficient is published for HCC 138?
The source-labeled community non-dual aged reference coefficient for CMS-HCC V28 category 138 is 0.423. The exact coefficient varies by enrollment segment (community Medicaid and originally-disabled status, and institutional); the full segment table is published in the CMS V28 model files.
How many ICD-10-CM codes map to HCC 138?
14 ICD-10-CM diagnosis codes appear in the official mapping for CMS-HCC V28 category 138 (Drug Use Disorder, Mild, Uncomplicated, Except Cannabis) for payment year 2026.
Which categories trump HCC 138 in the V28 hierarchy?
HCC 138 is superseded by HCC 135 (Drug Use with Psychotic Complications), HCC 136 (Alcohol Use with Psychotic Complications), HCC 137 (Drug Use Disorder, Moderate/Severe, or Drug Use with Non-Psychotic Complications). When a more severe category in the same disease group is documented, it is counted instead of HCC 138.
Related references
Sources
CMS ICD-10-CM order-file billability plus the published mapping and CMS-HCC V28 PY2026 model software. CMS-HCC V28 model published at CMS.gov Risk Adjustors; ICD-10-CM member codes from the CMS ICD-10-CM code set.
Verified current to CMS-HCC V28, payment year 2026 — last reviewed May 30, 2026.