SNOMED Codes: Guide for Healthcare Providers | Heidi AI
SNOMED Codes: Guide for Healthcare Providers
Lorraine Quintana
SEO Content Writer•February 5, 2026•7 min read
Fact checked by Dr. Maxwell Beresford
What are SNOMED Codes?
SNOMED CT or Systematized Nomenclature of Medicine - Clinical Terms is a language used to structure and standardize medical information across healthcare systems. Within this system are unique numerical identifiers called SNOMED codes, which are assigned to clinical concepts such as diagnoses, symptoms, or even procedures. ensures each one has a consistent meaning wherever it’s used.
In this article, we’ll discuss what SNOMED codes are, how they work, and how integrating them into clinical workflows can help clinicians save time.
SNOMED Codes Meaning in Healthcare
In busy hospital settings, medical practitioners are overwhelmed with documentation and back-to-back consultations. helps them accurately and efficiently by replacing free-text words with standardized, coded terms. The system avoids ambiguity across healthcare settings and providers.
For example, a cardiologist seeing a patient with a heart attack can use the SNOMED code 22298006, which represents myocardial infarction. Instead of using heart attack, logging this code in the patient record makes the diagnosis precise. It also prevents vagueness and ensures referrals and treatment planning are more reliable.
SNOMED CT Identifiers: How Are They Structured?
SNOMED codes are the numeric codes representing clinical concepts within the SNOMED CT. For better visualization, we’ll use 22298006, which is the code for myocardial infarction, as an example.
The structure consists of the following:
1. Item Identifier
The item identifier is the main part of a SNOMED code and uniquely distinguishes the item described. It may be a concept, description, or relationship. In the example, the item identifier is 22298.
It doesn’t bear any clinical meaning, as it simply ensures that every entry is distinct and can be referenced across systems.
2. Partition Identifier
In a SNOMED code, the partition is represented by the two digits immediately preceding the check digit, and its value varies depending on whether the identifier is in short or long format. This helps identify whether it’s from an international release or a country-specific extension.
So in the example, the partition identifier is 00, meaning the concept is in a standardized short format consistent with the international release.
3. Check Digit
The check digit in a SNOMED code is a built-in algorithm for error detection located at the last part of the code. In the example code, 6 is the last digit. What this does is ensure that incorrect codes and typos are flagged during data entry.
SNOMED Codes List Example
Some SNOMED CT codes are more common than others as they are often utilized in everyday medical practice. Here are some examples:
73211009 - Diabetes mellitus
22298006 - Myocardial infarction
59621000 - Essential hypertension
195967001 - Asthma
386661006 - Fever
For Dr Shane Grindle, the burden of documentation adds to the pressure of his already busy schedule. The task often carries over after work hours, leaving him with no time to spend with family and friends.
Fortunately, integrating Heidi into his workflow allowed him to reclaim his time. “Heidi’s been just great at making it simple, easy, and automated.” Additionally, with Heidi’s coding feature, he can confidently upcode or downcode visits.
“It’s like a night and day difference. You don’t even want to go back.”
When are SNOMED Codes Used in Clinical Practice?
SNOMED codes are implemented in clinical practice to make sure that documentation of patient conditions and protocols is standardized. Here are some applications of SNOMED in medical settings:
1. Electronic Health Records (EHRs)
In electronic health records or EHRs, SNOMED codes are utilized to ensure accurate records, diagnoses, and medical procedures. Each code has an assigned medical concept, so the same information is recorded, making data sharing seamless regardless of hospital or clinical facility.
2. Data Exchange and Interoperability
SNOMED codes play a crucial role in data exchange and interoperability. Systems receive the same information, and clinicians interpret findings consistently because of SNOMED's unique identifiers. This reduces misinterpretation and confusion, and errors like inappropriate billing are prevented.
3. Documentation
For clinicians, using SNOMED codes allows them to document consistent and structured patient information. Having a systematized way of capturing symptoms, clinical observations, and procedures allows doctors make faster, more precise decisions while reducing errors and administrative workload.
How to Use SNOMED Codes Effectively
Tools like SNOMED codes assist clinicians in making their clinical workflows more streamlined, accurate, and effective. Here are some best practices for utilizing SNOMED codes:
1. Always Use the Most Specific Code
Using the precise SNOMED code ensures that information is documented clearly. Being detailed with code usage prevents vague data entries, improves decision making, as well as making sure that EHRs deliver more relevant recommendations.
2. Keep Codes Consistent Across Care Team
Establishing organization-wide coding policies promotes consistency among healthcare teams. This can be supported with regular training and providing documentation audits, ensuring accurate reporting, and reducing errors in logging patient observations using SNOMED codes.
3. Complete Documentation
When doing consultation notes, combining SNOMED codes for procedures, findings, and qualifiers is important. As much as possible, don’t use free text when logging details to avoid ambiguous records and misinterpretation.
Using structured templates and medical documents can also support better treatment planning, so clinicians can continue to provide attentive care to patients.
4. Regularly Update and Maintain Code Mappings
SNOMED codes and mappings are updated as new concepts are added. It’s important to have regular reviews and maintenance to ensure that EHR systems are updated and accurate. Doing this prevents using old concepts and sustains interoperability for better data exchange.
5. Train Clinicians on Proper SNOMED Use
For clinicians, having training on utilizing SNOMED codes for accuracy is important. Training using SNOMED CT browsers can make code selection fast and precise, as this can help narrow down from broad categories to specific codes. Additionally, leveraging technologies such as EHR-integrated code suggestions could also improve coding quality and efficiency.
Clinicians already manage a significant workload by balancing continuous consultations while maintaining thorough documentation. AI tools like Heidi can ease this burden by generating SNOMED codes after every patient encounter.
With Heidi listening in the background, the time spent on data entry is reduced, allowing clinicians to focus more on patient care while maintaining confidence in the accuracy and clarity of their notes.
Heidi and SNOMED Codes: Working with the Way Clinicians Practice
Heidi is designed to work alongside you during consultations. By using AI tools like Heidi with standardized codes like SNOMED, clinicians like you can have:
Automated Coding Assistance: Heidi’s coding feature provides automatic and relevant SNOMED code suggestions for clinical notes. No need for manual coding, as Heidi handles the task with every consultation.
Review Codes Real Time: A dedicated side panel is designed to access the suggested SNOMED codes easily. You can easily review this by relevance and finalize selection afterwards.
Clinician Review and Oversight: Clinicians can review, edit, or remove codes anytime to ensure accuracy and be guided by clinical judgement.
As many as 75% of clinicians say Heidi gives them more time for patient care. Trusted by ICBs, Primary Care Networks, and health systems worldwide, Heidi has already returned 18 million hours to frontline clinicians and now supports over 2 million patient consultations weekly.
