LOINC System Laboratory Active Code (2026)
100000-9

Health informatics pioneer and the father of LOINC

Health informatics pioneer and the father of LOINC

RCM Financial Impact
0.0 Facility RVU

Pre-scrubbed & verified by Codes-For-MD AI claim engine for NCCI compliance.

Official Clinical Definition

Health informatics pioneer and the father of LOINC

Code System
LOINC
Clinical Category
Laboratory
Effective Date
N/A

Billing Guidelines & Coding Notes

Standard CMS and AMA billing guidelines apply for 100000-9. Ensure that the service or procedure performed is fully documented in the patient's medical record and meets all local coverage requirements.

Official Coding Guidelines
Select the appropriate code level based on medical decision making complexity or total time spent on the date of the encounter. Do not unbundle services that are integral to the primary procedure.

Documentation Checklist for Medical Necessity

To prevent RAC audits and ensure first-pass claim reimbursement, medical chart notes for 100000-9 must explicitly verify the following components:

Must document chief complaint, comprehensive history of present illness, relevant review of systems, physical examination findings, and a clear assessment/plan establishing medical necessity.

Allowed Modifiers

25, 59, 95, GA, GX, GY, GZ, Q6

CMS LCD / NCD Coverage

Check local MAC jurisdiction for active LCD/NCD coverage policies.

Educational Guide: Optimizing 100000-9 in RCM

Proper utilization of 100000-9 (Health informatics pioneer and the father of LOINC) is critical for maintaining a healthy practice revenue cycle. Under-coding this service leads to significant revenue leakage, while over-coding or failing to meet NCCI edit standards triggers immediate payer denials and potential compliance audits.

When integrating 100000-9 into your superbills or EHR templates, ensure that your clinical staff correlates the diagnosis codes (ICD-10) to support the precise medical necessity of the procedure. Utilizing an automated claim scrubbing solution like Codes-For-MD's AI RCM platform guarantees that modifier combinations are validated prior to clearinghouse transmission.

Frequently Asked Questions about 100000-9

The official clinical description for 100000-9 is: Health informatics pioneer and the father of LOINC. This code is used by healthcare providers to classify the specific service, procedure, or diagnosis for medical billing.

To properly bill 100000-9, medical providers must ensure clear documentation of medical necessity. Standard CMS/AMA documentation guidelines apply. Ensure all components of the encounter are clearly detailed in the patient chart.

Commonly accepted modifiers for 100000-9 include: Refer to NCCI edits and specific payer rules for allowable modifiers.. Modifiers are used to indicate that a service or procedure was altered by some specific circumstance but not changed in its definition or code.

Codes-For-MD AI utilizes advanced NLP and machine learning to pre-scrub claims containing 100000-9, verifying correct modifier usage, NCCI edit compliance, and LCD/NCD medical necessity rules before submission to prevent claim denials.

Codes-For-MD AI

Claim Scrubbing Engine

Our healthcare-trained NLP models have processed this code to extract official rules and billing invariants.

  • NCCI Edit Validation
  • RVU Leakage Detection
  • LCD/NCD Policy Check
  • Real-time MUE Verification
  • Automated Modifier Suggestion
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