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ICD-10 Guide
ICD-10 CodesF11.91

F11.91

Billable

Opioid use, unspecified, in remission

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/05/2025

Code Description

ICD-10 F11.91 is a billable code used to indicate a diagnosis of opioid use, unspecified, in remission.

Key Diagnostic Point:

F11.91 refers to a diagnosis of opioid use disorder that is currently in remission. This condition is characterized by a problematic pattern of opioid use leading to significant impairment or distress, but the individual is not currently experiencing any symptoms of withdrawal or intoxication. Remission can be classified as either partial or full, depending on the absence of symptoms. In this case, 'unspecified' indicates that the specific details of the opioid use disorder are not documented, which may include the type of opioid used or the severity of the disorder. Treatment for opioid use disorder often involves a combination of medication-assisted treatment (MAT), counseling, and support groups. The goal is to help individuals achieve and maintain remission, reducing the risk of relapse and improving overall quality of life. Clinicians must document the patient's history of opioid use, any previous treatment interventions, and the current status of their remission to ensure accurate coding and appropriate care.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in documentation of remission status
  • Need for clear differentiation between active use and remission
  • Potential overlap with other substance use disorders
  • Lack of specificity in the 'unspecified' designation

Audit Risk Factors

  • Inadequate documentation of remission status
  • Failure to specify the type of opioid used
  • Lack of follow-up documentation on treatment progress
  • Misclassification of remission as active use

Specialty Focus

Medical Specialties

Addiction Medicine

Documentation Requirements

Detailed history of substance use, treatment history, and current status of remission.

Common Clinical Scenarios

Patients transitioning from active treatment to remission, follow-up visits for relapse prevention.

Billing Considerations

Ensure clear documentation of the patient's progress and any ongoing support or treatment plans.

Psychiatry

Documentation Requirements

Comprehensive mental health evaluation, including substance use history and current mental health status.

Common Clinical Scenarios

Patients with co-occurring mental health disorders and opioid use disorder in remission.

Billing Considerations

Document any psychiatric interventions or therapies that may impact the patient's remission status.

Coding Guidelines

Inclusion Criteria

Use F11.91 When
  • According to ICD
  • 10 guidelines, F11
  • 91 should be used when the patient has a documented history of opioid use disorder but is currently in remission
  • It is essential to ensure that the documentation supports the diagnosis and reflects the patient's current status accurately

Exclusion Criteria

Do NOT use F11.91 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

H0031CPT Code

Mental health assessment

Clinical Scenario

Used during follow-up visits for patients in remission.

Documentation Requirements

Document the assessment findings and any changes in treatment plans.

Specialty Considerations

Addiction specialists should focus on substance use history and recovery progress.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of opioid use disorders, including remission states. This specificity helps in tracking treatment outcomes and improving care strategies.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of opioid use disorders, including remission states. This specificity helps in tracking treatment outcomes and improving care strategies.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of opioid use disorders, including remission states. This specificity helps in tracking treatment outcomes and improving care strategies.

Resources

Clinical References

  • •
    Substance Abuse and Mental Health Services Administration (SAMHSA)

Coding & Billing References

  • •
    Substance Abuse and Mental Health Services Administration (SAMHSA)

Frequently Asked Questions

What does 'in remission' mean in the context of opioid use disorder?

In remission indicates that the individual has not met the criteria for opioid use disorder for a specified period, meaning they are not currently experiencing withdrawal or intoxication symptoms.