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HCPCS M1110: Ongoing Care Interrupted by Patient Self-Discharge

HCPCS Level II code M1110 denotes situations where ongoing care cannot continue because the patient self-discharged early for reasons such as financial constraints, insurance issues, transportation problems, or unknown causes. Nationally, this code matters because it documents interrupted episodes of care that can affect quality measurement, billing completeness, patient outcomes, and resource utilization across inpatient and outpatient settings. Key payers covered in this overview include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare.

Readers will find concise context on the clinical situation this code captures, how it is used to document an interrupted course of care, and what information is typically associated with its use. The publication summarizes typical sites of service, common administrative considerations, and where data was unavailable in the input. It also points to what to expect in related documentation and coding workflows so stakeholders can align clinical records and claim submissions with payers' requirements. Data not available in the input: specific modifiers, associated taxonomies, ICD-10 mappings, related codes, and payer-specific billing rules.

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Billing Code Overview

HCPCS Level II code M1110 indicates that ongoing care was not possible because the patient self-discharged early (for example, financial or insurance reasons, transportation problems, or reason unknown). This code describes a situation in which a patient left the care setting before the planned course of treatment or service could be completed.

Service type: Early self-discharge interrupting planned care
Typical site of service: Inpatient or outpatient facility settings where a planned episode of care is interrupted by the patient's voluntary departure

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HCPCS M1110: Ongoing Care Interrupted by Patient Self-Discharge

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Billing Code Overview

Service type: Early self-discharge interrupting planned care
Typical site of service: Inpatient or outpatient facility settings where a planned episode of care is interrupted by the patient's voluntary departure

Clinical & Coding Specifications

Clinical Context

A patient presents to an outpatient behavioral health clinic or hospital-based behavioral health unit for ongoing mental health or substance use disorder treatment. During the initial or follow-up appointment, the patient elects to leave the program or clinic prior to completion of the planned episode of care for nonclinical reasons (for example, inability to pay, loss of insurance coverage, lack of transportation, or decision to self-discharge). The clinical workflow includes documentation of the attempted services, the treatments planned but not completed, patient-directed reasons for leaving, counseling provided about risks of early discharge, and instructions for follow-up or emergency care. Administrative staff enter the stop-service status into the billing system and assign HCPCS Level II code M1110 to indicate that ongoing care is not possible because the patient self-discharged early. Typical sites of service include outpatient behavioral health clinics, community mental health centers, hospital outpatient psychiatry clinics, and substance use disorder treatment programs. Common patient scenarios include financial barriers preventing continued outpatient psychotherapy, abrupt cessation of medication-assisted treatment because of transportation loss, or early departure from inpatient/residential behavioral health because of insurance denial or patient choice.

Coding Specifications

Modifier	Description	When to Use
`22`	Increased procedural services	Use when the clinician documents substantially greater work than typical for the billed service prior to self-discharge.
`23`	Unusual anesthesia	Use if anesthesia was required and was unusual for the planned service before the patient left.
`52`	Reduced services	Use when planned services were started but substantially reduced due to patient self-discharge.
`53`	Discontinued procedure	Use when a procedure was started but terminated because the patient left early.
`54`	Surgical care only	Use for the surgeon's portion when other providers will complete remaining care after discharge issues.
`55`	Postoperative management only	Use when only postoperative care was furnished due to early self-discharge affecting planned care.
`56`	Preoperative management only	Use when only preoperative evaluation was completed before patient left.
`62`	Two surgeons	Use if two surgeons were required and one or both services were impacted by early discharge.
`AS`	Physician assistant, nurse practitioner, or clinical nurse specialist services for assistant at surgery	Use when an assistant's role was affected by the patient's early departure.
`53`	Discontinued procedure (duplicate listed for emphasis)	Use when documentation supports termination of a planned procedure because of patient-initiated discharge.

Taxonomy Code	Specialty	Notes
`106H00000X`	Psychiatry	Behavioral health providers who manage mental health treatment plans affected by self-discharge.
`101Y00000X`	Family Medicine	Primary care clinicians who may provide initial stabilization or referrals before patient leaves.
`207Q00000X`	Addiction Medicine	Providers delivering substance use disorder care, often impacted by early self-discharge.
`163W00000X`	Clinical Social Worker	Clinicians providing psychotherapy and discharge planning in outpatient behavioral settings.
`1835D0004X`	Nurse Practitioner	Advanced practice providers delivering clinic-based behavioral health services and follow-up.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`F32.9`	Major depressive disorder, single episode, unspecified	Common reason for outpatient psychotherapy or medication management where a patient may self-discharge.
`F41.1`	Generalized anxiety disorder	Frequent presenting diagnosis in behavioral health clinics; treatment interruption is reported with `M1110`.
`F11.20`	Opioid dependence, uncomplicated	Substance use disorder treatment often disrupted by early patient-initiated discharge.
`F10.20`	Alcohol dependence, uncomplicated	Residential or outpatient addiction treatments can be truncated by self-discharge for social/financial reasons.
`Z59.0`	Homelessness	Social determinants such as unstable housing commonly contribute to inability to continue care and self-discharge.
`Z59.7`	Insufficient social insurance and welfare support	Insurance or financial barriers leading to early termination of services and use of `M1110`.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`90837`	Psychotherapy, 60 minutes with patient	Commonly planned outpatient psychotherapy session that may be interrupted by patient self-discharge.
`90834`	Psychotherapy, 45 minutes with patient	Typical therapy session length that might be initiated but not completed due to early departure.
`99214`	Office or other outpatient visit for the evaluation and management of an established patient, moderate complexity	Common E/M visit code for behavioral health follow-up visits potentially truncated by self-discharge.
`H0004`	Behavioral health counseling and therapy, per 15 minutes	Frequently used for substance use counseling sessions that may be stopped early by patient choice.
`90853`	Group psychotherapy (other than of a multiple-family group)	Group sessions in community settings that patients may leave prior to completion, necessitating `M1110` reporting.

HCPCS Level II M1111: Start of Episode of Care, Documentation

HCPCS-LEVEL-II-M1120-PATIENT-SELF-DISCHARGED-EARLY

HCPCS Level II M1120: Ongoing Care Not Possible Due to Patient Self-Discharge

HCPCS-M1106-START-OF-EPISODE-OF-CARE

HCPCS M1106: Start of Episode of Care

HCPCS-M1107-DEGENERATIVE-NEUROLOGICAL-DIAGNOSIS-DOCUMENTATION

HCPCS Level II M1107: Documentation of Degenerative Neurological Diagnosis

HCPCS-M1108-HOME-PROGRAM-REFERRAL-CONSULTATION-ONLY

HCPCS M1108: Ongoing Care Not Clinically Indicated; Home Program/Referral/Consult

HCPCS-M1109-ONGOING-CARE-INTERRUPTED-DUE-TO-EARLY-DISCHARGE

HCPCS M1109: Ongoing Care Interrupted Due to Early Discharge

HCPCS-M1112-DEGENERATIVE-NEUROLOGICAL-DIAGNOSIS-DOCUMENTATION

HCPCS Level II M1112: Documentation of Degenerative Neurological Diagnosis

HCPCS-M1113-ONGOING-CARE-NOT-CLINICALLY-INDICATED-HOME-PROGRAM-REFERRAL-CONSULTATION

HCPCS M1113: Ongoing Care Not Clinically Indicated (Home Program/Referral/Consult)

HCPCS-M1114-CARE-DISCONTINUED-DUE-TO-HOSPITALIZATION-OR-SURGERY

HCPCS M1114: Care Discontinued Due to Hospitalization or Scheduled Surgery

HCPCS-M1115-PATIENT-SELF-DISCHARGE-INTERRUPTED-CARE

HCPCS M1115: Ongoing Care Interrupted by Patient Self-Discharge

Showing 1–10 of 37

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Jul 29, 2026.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Jul 29, 2026.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Jul 29, 2026.

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Trek Health ingests and normalizes Transparency in Coverage data and payer policy updates to give provider organizations a clear view of how commercial reimbursement behaves across markets, payers, and services. Our platform transforms raw payer disclosures into structured intelligence that supports contract evaluation, payer negotiations, and service line strategy. By combining market benchmarks with ongoing policy visibility, Trek helps teams identify variability, risk, and opportunity in commercial reimbursement. The result is faster insight, stronger negotiating positions, and more informed financial decisions.

Clinical & Coding Specifications

Clinical Context

Coding Specifications

Modifier	Description	When to Use
`22`	Increased procedural services	Use when the clinician documents substantially greater work than typical for the billed service prior to self-discharge.
`23`	Unusual anesthesia	Use if anesthesia was required and was unusual for the planned service before the patient left.
`52`	Reduced services	Use when planned services were started but substantially reduced due to patient self-discharge.
`53`	Discontinued procedure	Use when a procedure was started but terminated because the patient left early.
`54`	Surgical care only	Use for the surgeon's portion when other providers will complete remaining care after discharge issues.
`55`	Postoperative management only	Use when only postoperative care was furnished due to early self-discharge affecting planned care.
`56`	Preoperative management only	Use when only preoperative evaluation was completed before patient left.
`62`	Two surgeons	Use if two surgeons were required and one or both services were impacted by early discharge.
`AS`	Physician assistant, nurse practitioner, or clinical nurse specialist services for assistant at surgery	Use when an assistant's role was affected by the patient's early departure.
`53`	Discontinued procedure (duplicate listed for emphasis)	Use when documentation supports termination of a planned procedure because of patient-initiated discharge.

Taxonomy Code	Specialty	Notes
`106H00000X`	Psychiatry	Behavioral health providers who manage mental health treatment plans affected by self-discharge.
`101Y00000X`	Family Medicine	Primary care clinicians who may provide initial stabilization or referrals before patient leaves.
`207Q00000X`	Addiction Medicine	Providers delivering substance use disorder care, often impacted by early self-discharge.
`163W00000X`	Clinical Social Worker	Clinicians providing psychotherapy and discharge planning in outpatient behavioral settings.
`1835D0004X`	Nurse Practitioner	Advanced practice providers delivering clinic-based behavioral health services and follow-up.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`F32.9`	Major depressive disorder, single episode, unspecified	Common reason for outpatient psychotherapy or medication management where a patient may self-discharge.
`F41.1`	Generalized anxiety disorder	Frequent presenting diagnosis in behavioral health clinics; treatment interruption is reported with `M1110`.
`F11.20`	Opioid dependence, uncomplicated	Substance use disorder treatment often disrupted by early patient-initiated discharge.
`F10.20`	Alcohol dependence, uncomplicated	Residential or outpatient addiction treatments can be truncated by self-discharge for social/financial reasons.
`Z59.0`	Homelessness	Social determinants such as unstable housing commonly contribute to inability to continue care and self-discharge.
`Z59.7`	Insufficient social insurance and welfare support	Insurance or financial barriers leading to early termination of services and use of `M1110`.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`90837`	Psychotherapy, 60 minutes with patient	Commonly planned outpatient psychotherapy session that may be interrupted by patient self-discharge.
`90834`	Psychotherapy, 45 minutes with patient	Typical therapy session length that might be initiated but not completed due to early departure.
`99214`	Office or other outpatient visit for the evaluation and management of an established patient, moderate complexity	Common E/M visit code for behavioral health follow-up visits potentially truncated by self-discharge.
`H0004`	Behavioral health counseling and therapy, per 15 minutes	Frequently used for substance use counseling sessions that may be stopped early by patient choice.
`90853`	Group psychotherapy (other than of a multiple-family group)	Group sessions in community settings that patients may leave prior to completion, necessitating `M1110` reporting.

HCPCS Level II M1111: Start of Episode of Care, Documentation

HCPCS-LEVEL-II-M1120-PATIENT-SELF-DISCHARGED-EARLY

HCPCS Level II M1120: Ongoing Care Not Possible Due to Patient Self-Discharge

HCPCS-M1106-START-OF-EPISODE-OF-CARE

HCPCS M1106: Start of Episode of Care

HCPCS-M1107-DEGENERATIVE-NEUROLOGICAL-DIAGNOSIS-DOCUMENTATION

HCPCS Level II M1107: Documentation of Degenerative Neurological Diagnosis

HCPCS-M1108-HOME-PROGRAM-REFERRAL-CONSULTATION-ONLY

HCPCS M1108: Ongoing Care Not Clinically Indicated; Home Program/Referral/Consult

HCPCS-M1109-ONGOING-CARE-INTERRUPTED-DUE-TO-EARLY-DISCHARGE

HCPCS M1109: Ongoing Care Interrupted Due to Early Discharge

HCPCS-M1112-DEGENERATIVE-NEUROLOGICAL-DIAGNOSIS-DOCUMENTATION

HCPCS Level II M1112: Documentation of Degenerative Neurological Diagnosis

HCPCS-M1113-ONGOING-CARE-NOT-CLINICALLY-INDICATED-HOME-PROGRAM-REFERRAL-CONSULTATION

HCPCS M1113: Ongoing Care Not Clinically Indicated (Home Program/Referral/Consult)

HCPCS-M1114-CARE-DISCONTINUED-DUE-TO-HOSPITALIZATION-OR-SURGERY

HCPCS M1114: Care Discontinued Due to Hospitalization or Scheduled Surgery

HCPCS-M1115-PATIENT-SELF-DISCHARGE-INTERRUPTED-CARE

HCPCS M1115: Ongoing Care Interrupted by Patient Self-Discharge

Showing 1–10 of 37

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Jul 29, 2026.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Jul 29, 2026.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Jul 29, 2026.

Published by

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HCPCS M1110: Ongoing Care Interrupted by Patient Self-Discharge

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Billing Code Overview

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HCPCS M1110: Ongoing Care Interrupted by Patient Self-Discharge

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Billing Code Overview

Clinical & Coding Specifications

Clinical Context

Coding Specifications

Related Diagnoses

Related CPT Codes

Related Codes

References

Clinical & Coding Specifications

Clinical Context

Coding Specifications

Related Diagnoses

Related CPT Codes

Related Codes

References