F19.91 ICD-10-CM Code: Other psychoactive substance use, unspecified, in remission
F19.91 is not a CMS-HCC payment code. MEAT criteria · RAF Calculator · HCC coding software
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FY 2026 Apr update / Mental, Behavioral and Neurodevelopmental disorders (F01-F99) / Mental and behavioral disorders due to psychoactive substance use (F10-F19)
F19.91
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidanceOther psychoactive substance use, unspecified, in remission
History of using various psychoactive substances that is now in remission or recovery.
CMS-HCC V28
N/A—
Not mapped
CMS-HCC V24
HistoricalHistorical
Not used for CY2026 payment
ACA/HHS
N/A—
Not mapped
ESRD/PACE
N/A—
Not mapped
RXHCC
N/A—
Not mapped
Code Book Path
Inclusion Terms
OfficialICD-10-CM does not list inclusion terms for F19.91 in this effective period.
Excludes 2
OfficialICD-10-CM does not list Excludes 2 notes for F19.91 in this effective period.
Related Child Codes
Includes
OfficialICD-10-CM does not list Includes notes for F19.91 in this effective period.
Excludes 1
Official- other psychoactive substance abuse (F19.1-)
- other psychoactive substance dependence (F19.2-)
Code First
OfficialICD-10-CM does not list Code First sequencing instructions for F19.91 in this effective period.
Use Additional
OfficialICD-10-CM does not list Use Additional Code instructions for F19.91 in this effective period.
Code Also
OfficialICD-10-CM does not list Code Also instructions for F19.91 in this effective period.
Buddy Documentation Tip
Current with CMS: FY2026 ICD-10-CM Apr 1 update (effective Apr 1 – Sep 30, 2026) · CMS-HCC V28, 100% phased in for payment year 2026. FY2027 code set already staged for October 1, 2026. How HCC Buddy stays current →
Is F19.91 an HCC code?
No. F19.91 is a billable ICD-10-CM code with no mapping under the CMS-HCC V28 or V24 community payment models, and none under the ESRD, Part D RxHCC, or HHS-HCC models.
- Code
- F19.91
- Description
- Other psychoactive substance use, unspecified, in remission
- HCC (V28)
- No CMS-HCC V28 mapping
- RAF reference coefficient
- —
- Billable
- Yes
- Payment year
- 2026
Coder workflow notes
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This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
F19.91 is the ICD-10-CM diagnosis code for other psychoactive substance use, unspecified, in remission. History of using various psychoactive substances that is now in remission or recovery. F19.91 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).
F19.91 is a billable ICD-10-CM code, but the current payload does not show a mapping under the CMS-HCC V28 or V24 community payment models, and none under the ESRD, Part D RxHCC, or HHS-HCC models. Do not assign risk adjustment value from this page when no source-backed mapping is shown; verify the applicable model and payment year.
Use this code when the patient has a documented history of substance use but is currently abstinent or in recovery.
HCC Buddy maintains structured V28 and V24 mapping, source-labeled coefficient references, and MEAT documentation criteria for F19.91 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Use this code when the patient has a documented history of substance use but is currently abstinent or in recovery
- •Remission status indicates the patient is no longer actively using the substance