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

ICD-10 Z03.821

Billable / Specific

Encounter for observation for suspected ingested foreign body ruled out

Z03
Block
0
Synonyms
50
LCDs
2
Payer Policies
0
Linked CPTs

About ICD-10-CM Z03.821

ICD-10-CM code Z03.821 represents Encounter for observation for suspected ingested foreign body ruled out. This is a billable/specific code in the Factors Influencing Health Status chapter (block Z03). The 2026 edition of ICD-10-CM Z03.821 became effective on October 1, 2025.

Medicare LCD Coverage for Z03.821

Local Coverage Determinations (LCDs) from CMS MACs that list Z03.821 as a covered diagnosis.

50 LCDs

Showing top 10 of 50 total . Click a CPT for full coverage scope.

CMS LCD: Billing and Coding: Computerized Axial Tomography (CT), Thorax
Article ID: 56580, Effective: 2025-10-01 00:00:00, 3544 covered, 0 non-covered
CPT 71270 →
CMS LCD: Billing and Coding: Computerized Axial Tomography (CT), Thorax
Article ID: 56580, Effective: 2025-10-01 00:00:00, 3544 covered, 0 non-covered
CPT 71260 →
CMS LCD: Billing and Coding: Computerized Axial Tomography (CT), Thorax
Article ID: 56580, Effective: 2025-10-01 00:00:00, 3544 covered, 0 non-covered
CPT 71250 →
CMS LCD: Billing and Coding: Colonoscopy/Sigmoidoscopy/Proctosigmoidoscopy
Article ID: 56456, Effective: 2026-01-22 00:00:00, 422 covered, 0 non-covered
CPT 45341 →
CMS LCD: Billing and Coding: Colonoscopy/Sigmoidoscopy/Proctosigmoidoscopy
Article ID: 56456, Effective: 2026-01-22 00:00:00, 422 covered, 0 non-covered
CPT 45331 →
CMS LCD: Billing and Coding: Colonoscopy/Sigmoidoscopy/Proctosigmoidoscopy
Article ID: 56456, Effective: 2026-01-22 00:00:00, 422 covered, 0 non-covered
CPT 44392 →
CMS LCD: Billing and Coding: Colonoscopy/Sigmoidoscopy/Proctosigmoidoscopy
Article ID: 56456, Effective: 2026-01-22 00:00:00, 422 covered, 0 non-covered
CPT 45386 →
CMS LCD: Billing and Coding: Colonoscopy/Sigmoidoscopy/Proctosigmoidoscopy
Article ID: 56456, Effective: 2026-01-22 00:00:00, 422 covered, 0 non-covered
CPT 45378 →
CMS LCD: Billing and Coding: Colonoscopy/Sigmoidoscopy/Proctosigmoidoscopy
Article ID: 56456, Effective: 2026-01-22 00:00:00, 422 covered, 0 non-covered
CPT 45305 →
CMS LCD: Billing and Coding: Colonoscopy/Sigmoidoscopy/Proctosigmoidoscopy
Article ID: 56456, Effective: 2026-01-22 00:00:00, 422 covered, 0 non-covered
CPT 45309 →

Commercial Payer Coverage

Coverage policies from major commercial payers referencing Z03.821.

2 policies

2 Medicare

Billing and Coding: Colonoscopy/Sigmoidoscopy/Proctosigmoidoscopy
Policy ID: ART-56456
Billing and Coding: Computerized Axial Tomography (CT), Thorax
Policy ID: ART-56580

CPT Codes Commonly Billed with Z03.821

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

No procedure linkages on file for Z03.821

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.

Codes Adjacent To Z03.821

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 Z03.821, Billing FAQ

Is ICD-10 code Z03.821 billable? +

Yes, Z03.821 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.

Get the full PayerReady toolkit

Free access to CPT/ICD-10 lookup, denial appeals, fee comparator, and claim auditing with credentialing enrollment.

Start free →

Run this code through our claim audit tool

Check NCCI bundling, MUE limits, and modifier logic before submission.

Try the auditor →

Did this page help?

Quick signal so we know what to improve.

Thanks!

If you want a code reference page that doesn't exist yet, email coding@payerready.com.

Sorry to hear that.

Tell us what's missing or wrong: coding@payerready.com. We respond within 5 business days.

Reviewed by the PayerReady Medical Coding Team

Verified against the CMS 2026 code set on June 2, 2026.

Powered by 11K CPT · 98K ICD-10 · 860K MPFS rates · 4.5M NCCI edits · 9.5M NPIs. Our data methodology · About our coding team

Faster Approvals

Ready to Cut Your Enrollment Timeline in Half?

Join providers in all 50 states who handed off credentialing to a dedicated specialist. Create your free account in minutes and start enrolling the same day.

All 50 States Covered
No Long-Term Contracts
HIPAA HIPAA Compliant Platform
Dedicated Specialist Included