ICD-10-CM 2026 · Effective October 1, 2025

ICD-10 Z03.818

Billable / Specific

Encounter for observation for suspected exposure to other biological agents ruled out

Z03
Block
0
Synonyms
577
LCDs
8
Payer Policies
0
Linked CPTs

About ICD-10-CM Z03.818

ICD-10-CM code Z03.818 represents Encounter for observation for suspected exposure to other biological agents ruled out. This is a billable/specific code in the Factors Influencing Health Status chapter (block Z03). The 2026 edition of ICD-10-CM Z03.818 became effective on October 1, 2025.

Medicare LCD Coverage for Z03.818

Local Coverage Determinations (LCDs) from CMS MACs that list Z03.818 as a covered diagnosis.

577 LCDs

Showing top 10 of 577 total . Click a CPT for full coverage scope.

CMS LCD: Billing and Coding: MolDX: Molecular Syndromic Panels for Infectious Disease Pathogen Identification Testing
Article ID: 58761, Effective: 2026-03-12 00:00:00, 851 covered, 0 non-covered
CPT 87555 →
CMS LCD: Billing and Coding: MolDX: Molecular Syndromic Panels for Infectious Disease Pathogen Identification Testing
Article ID: 58761, Effective: 2026-03-12 00:00:00, 851 covered, 0 non-covered
CPT 87653 →
CMS LCD: Billing and Coding: MolDX: Molecular Syndromic Panels for Infectious Disease Pathogen Identification Testing
Article ID: 58761, Effective: 2026-03-12 00:00:00, 851 covered, 0 non-covered
CPT 87486 →
CMS LCD: Billing and Coding: MolDX: Molecular Syndromic Panels for Infectious Disease Pathogen Identification Testing
Article ID: 58761, Effective: 2026-03-12 00:00:00, 851 covered, 0 non-covered
CPT 87626 →
CMS LCD: Billing and Coding: MolDX: Molecular Syndromic Panels for Infectious Disease Pathogen Identification Testing
Article ID: 58761, Effective: 2026-03-12 00:00:00, 851 covered, 0 non-covered
CPT 0109U →
CMS LCD: Billing and Coding: MolDX: Molecular Syndromic Panels for Infectious Disease Pathogen Identification Testing
Article ID: 58761, Effective: 2026-03-12 00:00:00, 851 covered, 0 non-covered
CPT 87516 →
CMS LCD: Billing and Coding: MolDX: Molecular Syndromic Panels for Infectious Disease Pathogen Identification Testing
Article ID: 58761, Effective: 2026-03-12 00:00:00, 851 covered, 0 non-covered
CPT 87517 →
CMS LCD: Billing and Coding: MolDX: Molecular Syndromic Panels for Infectious Disease Pathogen Identification Testing
Article ID: 58761, Effective: 2026-03-12 00:00:00, 851 covered, 0 non-covered
CPT 87528 →
CMS LCD: Billing and Coding: MolDX: Molecular Syndromic Panels for Infectious Disease Pathogen Identification Testing
Article ID: 58761, Effective: 2026-03-12 00:00:00, 851 covered, 0 non-covered
CPT 87476 →
CMS LCD: Billing and Coding: MolDX: Molecular Syndromic Panels for Infectious Disease Pathogen Identification Testing
Article ID: 58761, Effective: 2026-03-12 00:00:00, 851 covered, 0 non-covered
CPT 87594 →

Commercial Payer Coverage

Coverage policies from major commercial payers referencing Z03.818.

8 policies

5 Medicare

Billing and Coding: Computerized Axial Tomography (CT), Thorax
Policy ID: ART-56580
Billing and Coding: Respiratory Pathogen Panel Testing
Policy ID: ART-58575
Billing and Coding: Respiratory Pathogen Panel Testing
Policy ID: ART-58577
Billing and Coding: MolDX: Molecular Syndromic Panels for Infectious Disease Pathogen Identification Testing
Policy ID: ART-58710
Billing and Coding: MolDX: Molecular Syndromic Panels for Infectious Disease Pathogen Identification Testing
Policy ID: ART-58720

CPT Codes Commonly Billed with Z03.818

Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.

No procedure linkages on file for Z03.818

We don't have CPT pairings indexed for this specific code yet. Use the CPT search above to find common procedures, or check your payer's published medical policy for code-specific guidance.

Convert Z03.818 to ICD-9-CM

Per CMS General Equivalence Mappings (GEMs), useful for legacy data review and historical claim analysis.

ICD-10ICD-9Mapping Flags
Z03.818 V7183 00000

Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).

Codes Adjacent To Z03.818

Other codes in section Z00-Z13 (Persons encountering health services for examinations).

Z00 Encounter for general examination without complaint, suspected or reported diagnosis (non-billable) Z00.0 Encounter for general adult medical examination (non-billable) Z00.00 Encounter for general adult medical examination without abnormal findings Z00.01 Encounter for general adult medical examination with abnormal findings Z00.1 Encounter for newborn, infant and child health examinations (non-billable) Z00.11 Newborn health examination (non-billable) Z00.110 Health examination for newborn under 8 days old Z00.111 Health examination for newborn 8 to 28 days old Z00.12 Encounter for routine child health examination (non-billable) Z00.121 Encounter for routine child health examination with abnormal findings Z00.129 Encounter for routine child health examination without abnormal findings Z00.2 Encounter for examination for period of rapid growth in childhood Z00.3 Encounter for examination for adolescent development state Z00.5 Encounter for examination of potential donor of organ and tissue Z00.6 Encounter for examination for normal comparison and control in clinical research program Z00.7 Encounter for examination for period of delayed growth in childhood (non-billable) Z00.70 Encounter for examination for period of delayed growth in childhood without abnormal findings Z00.71 Encounter for examination for period of delayed growth in childhood with abnormal findings Z00.8 Encounter for other general examination Z01 Encounter for other special examination without complaint, suspected or reported diagnosis (non-billable)

ICD-10 Z03.818, Billing FAQ

Is ICD-10 code Z03.818 billable? +

Yes, Z03.818 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.

What ICD-9 codes does Z03.818 map to? +

Per CMS GEMs, Z03.818 maps to ICD-9 codes: V7183. Useful for legacy data review and historical claim analysis.

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Reviewed by the PayerReady Medical Coding Team

Verified against the CMS 2026 code set on June 1, 2026.

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