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Death Interval Report (Time-to-Event Analysis) – Survival or Mortality Assessment

Published: August 9, 2026Updated: August 16, 2026

This test evaluates the time between a medical event (such as diagnosis or treatment initiation) and death, helping doctors assess survival outcomes in clinical studies or patient follow-ups.

Quick summary

["Understanding how long patients survive after key health events can guide treatment decisions and research."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
95899-1
Short code
Event deaths # in RptPeriod
Synonyms
Event deaths # in RptPeriod
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Ref low
0.8
Ref high
1.2
Critical range
— – 5 N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
CPT
85610
SNOMED
396252006
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

What This Test Measures

This test analyzes survival data by measuring the duration from a defined event (e.g., diagnosis, procedure, or treatment start) until death. It’s often used in research or specialized clinical settings to study long-term outcomes rather than measuring a single blood or bodily substance.

How It’s Typically Used

Healthcare providers may use this type of analysis in large studies, clinical trials, or long-term follow-ups to track survival trends. It doesn’t involve drawing blood or collecting bodily fluids but instead relies on recorded patient data over time.

Who Might Need This Test

Doctors may request this analysis for patients participating in clinical trials, those with chronic conditions requiring long-term monitoring, or in research settings to evaluate survival metrics after specific interventions.

What to Expect Before the Test

Since this test doesn’t require a blood draw or specimen collection, you won’t need to prepare in a special way. Your healthcare team will review your medical history and event timeline to calculate survival intervals.

Reference range

INR: 0.8-1.2 (warfarin: 2.0-3.0)N/A

Specimen: serum

Inform your healthcare provider if you are taking blood thinners. No special preparation required.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Frequently asked questions

Does this test involve a blood draw?
No, this test does not involve a blood draw or bodily fluid collection. It relies on recorded medical event timelines and survival data from patient records.
How long does it take to get results?
Results are typically generated quickly, often within days, depending on the complexity of the study or clinical follow-up being analyzed.
Can this test be used for routine care?
This test is primarily used in research, clinical trials, or specialized follow-ups—not as a routine diagnostic tool for individual patient care.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy