California CDPH 110a Confidential Morbidity Report

California providers use this report to notify the local health officer of a case or suspected case of a disease or condition reportable under Title 17, California Code of Regulations, section 2500. CDPH calls it the initial report required from the provider for any reportable disease, except HIV/AIDS, tuberculosis and conditions reportable to the DMV. Pages 3 to 5 reprint the Title 17 list with each condition's reporting deadline.

Who completes it

The health care provider who diagnoses or suspects the reportable condition completes the whole form; Title 17 defines providers to include physicians, nurse practitioners, physician assistants, registered nurses, dentists and others. There is no patient or employer section.

How to fill it in

Disease Being Reported

Name the disease or condition at the top of page 1; the fillable PDF offers it as a drop-down. The banner above it repeats the form's scope: use it for all conditions except HIV/AIDS, tuberculosis and conditions reportable to the DMV. Check the condition's urgency on the Title 17 list on page 3 before deciding whether a written report alone is enough.

Patient information

Enter the patient's name, home address, home, cell and work phone numbers, email, primary language, birth date and age. The form also asks for gender identity, sex assigned at birth, sexual orientation, ethnicity and race, pregnancy status with estimated delivery date, country of birth, and occupation or job title. Check any occupational or exposure setting that applies: food service, day care, health care, correctional facility, school or other.

Date of Onset, Date of First Specimen Collection, Date of Diagnosis and Date of Death

Record the date symptoms began, the date the first specimen was collected, the date of diagnosis and, if the patient died, the date of death, each as mm/dd/yyyy. The row sits between the occupation and exposure-setting fields and the reporting provider block on page 1.

Reporting Health Care Provider, Laboratory and Report To

Give the reporting health care provider and facility, address, telephone and fax numbers, who submitted the report and the date submitted. Name the laboratory with its city, state and ZIP code. The Report To box holds the local health department's details, and the form notes that additional forms can be obtained from the local health department.

Sexually Transmitted Diseases (STDs)

For an STD, record the gender of sex partners and treatment: treated in office or given a prescription, drug, dosage and route, and start date, or why the patient is untreated. For syphilis, mark the stage, any neurologic, otic, ocular or late clinical manifestations, and results with titers for RPR, VDRL, FTA-ABS, TP-PA, EIA/CLIA and CSF-VDRL. For gonorrhea, check specimen sources and symptoms, then whether partners were treated.

Remarks

The Remarks box at the bottom of page 1, below the STD section, is the only free-text field on the page, for details the structured fields do not capture. Outbreaks of any disease, including ones not on the section 2500 list, and any unusual disease are reportable immediately by telephone, not only in writing.

Viral Hepatitis

Page 2 repeats the patient's name and birth date. Check the diagnosis (hepatitis A, B, C, D or E, with acute, chronic or perinatal where listed), whether the patient is symptomatic, and suspected exposures such as transfusion or procedures, IV drug use, needle exposure, sexual, household or perinatal contact, or child care. Record ALT and AST with upper limits, bilirubin, and positive or negative serology from anti-HAV IgM through anti-HEV, plus HBV DNA.

Title 17 Reportable Diseases and Conditions (pages 3 to 5)

These pages reprint section 2500, the urgency codes and the full list. A telephone symbol with an exclamation mark means report immediately by phone; a telephone alone means by phone within one working day; FAX, phone and mail symbols mean any of those within one working day; WEEK means within seven calendar days. Page 5 also covers HIV reporting, noncommunicable conditions such as pesticide-related illness and cancer, and a box for locally reportable diseases.

Common mistakes

  • Using the CMR for tuberculosis, HIV/AIDS or conditions reportable to the DMV; the form excludes them and CDPH directs TB to CDPH 110b and DMV conditions to CDPH 110c.
  • Faxing or mailing a report for a condition marked for immediate telephone reporting, such as anthrax or measles, instead of calling the local health department.
  • Sending the report to the health department where the practice is located rather than the local health officer for the jurisdiction where the patient resides, as section 2500(b) requires.
  • Reporting only confirmed cases, although section 2500(b) requires providers to report suspected cases of listed diseases as well.
  • Overlooking outbreaks and unusual diseases: an outbreak of any disease, even one not on the list, and any unusual disease must be reported immediately by telephone.

Submitting and payment

How to submit it
Send it to the local health department of the patient's residence by fax, mail or phone, or enter it in the CalREDIE Provider Portal where that department uses it. The Title 17 list sets the deadline: immediately by phone, within one working day, or within seven calendar days.
Who pays
CDPH lists no fee or payment for the report, which Title 17 makes a duty of every health care provider who knows of or attends a reportable case.

Good to know

  • Use CDPH 110b for tuberculosis, CDPH 110c for lapses of consciousness, Alzheimer's disease and other conditions that may impair safe driving, CDPH 110d for COVID-19, and CDPH 8572 for animal patients.
  • Failure to report is a misdemeanor under Health and Safety Code section 120295 and a citable offense under the Medical Board of California's Citation and Fine Program.
  • HIV infection at all stages is reported separately under Title 17 sections 2641.30 to 2643.20, by traceable mail, person-to-person transfer or electronically within seven calendar days.
  • Several large counties, such as Los Angeles, publish their own CMR version, and the last page has a box for locally reportable diseases where they apply.

Get the official form

Download the current version from the source each time; forms change without notice.

Confidential Morbidity Report

How this list is checked

A form is listed only after its name and number were confirmed on the issuing agency’s or insurer’s own website, or in the form itself. Each entry links to that source. The list was last checked in October 2026. Forms and their requirements change without notice, so check the official page for the current version before you complete one.

Vero is not affiliated with, or endorsed by, the agencies and insurers listed here. Read our editorial policy.

Frequently asked questions

Which diseases are not reported on CDPH 110a?

HIV/AIDS, tuberculosis and conditions reportable to the DMV. Tuberculosis goes on CDPH 110b, and CDPH 110c covers lapses of consciousness or control, Alzheimer's disease and other conditions that may impair safe driving. COVID-19 has its own form, CDPH 110d, and conditions in animal patients use CDPH 8572.

How fast must a Confidential Morbidity Report be sent in California?

It depends on the condition's symbol on the Title 17 list. Some must be reported immediately by telephone, such as anthrax and measles. Others are reported by phone within one working day, or by fax, phone or mail within one working day. All other listed conditions are due within seven calendar days of identification.

Who has to file a Confidential Morbidity Report?

Under Title 17 section 2500(b), every health care provider who knows of or attends a case or suspected case of a listed disease must report it to the local health officer where the patient resides. Section 2500(c) makes health facility and clinic administrators responsible for procedures that ensure reports are made.

Can I submit a California CMR electronically?

Yes, where the local health department uses it, the report can be entered in the CalREDIE Provider Portal instead of faxing or mailing the PDF. CalREDIE is replacing paper reporting in many local health departments, and some large counties, such as Los Angeles, publish their own CMR version.