CareSource Timely Filing Limit

CareSource's first published filing rule in the reviewed sources is: In-network providers: 180 days from date of service or eligibility decision, whichever is later. Confirm the plan, provider agreement, and event that starts the filing period before submission.

At a glance

• For CareSource Nevada Medicaid, the provider manual states in-network claims must be submitted within 180 days from date of service or eligibility decision, whichever is later; out-of-state providers have 365 days. Corrected claims are generally treated as initial claims and remain subject to the original timely-filing limit unless the claim is in a special scenario (for example, certain post-discharge billing or COB handling).

Initial claim filing limits

• In-network providers: 180 days from date of service or eligibility decision, whichever is later
• Out-of-state providers: 365 days from date of service or eligibility decision, whichever is later
• Certain facility/final-bill scenarios: provider has six months from date of discharge to submit the complete bill

Corrected claim filing limits

• Corrected claims filed after an initial timely claim are still considered initial claims and are subject to the 180-day limit for in-network providers
• Corrected claims must include the original claim number
• If a claim was denied for incorrect/inaccurate information, it may be resubmitted with corrections; if resubmitted without corrections, it is treated as a duplicate

Appeal and reconsideration deadlines

• Provider disputes: within 12 months from date of service or 60 calendar days after payment/denial/partial denial of a timely dispute submission, whichever is later
• Non-participating provider claim appeal: within 60 days of remittance advice
• Non-participating provider claim appeal: if no contract-specific rule applies, 65 calendar days from date of service or discharge is stated on the Nevada appeals page
• Corrected claim vs appeal distinction is emphasized; corrected claims should be used when the issue is incomplete/incorrect/unclear claim information

Trigger basis and caveats

• The manual uses date of service or date of eligibility decision, whichever is later, for initial filing timeliness
• Some appeal/dispute deadlines are measured from remittance advice, written determination, payment, or denial date rather than date of service
• Coordination-of-benefits scenarios have special documentation timing rules
• Timely filing varies by provider type and scenario; the manual contains several exceptions.
• The source manual is Nevada Medicaid-specific and should be preferred over general CareSource pages for filing rules.
• For corrected claims, the plan distinguishes between corrected resubmissions and appeals/disputes.

Provider resources

• Nevada Medicaid Provider Manual (PDF) (official)
• Nevada Medicaid Provider Claims page (official)
• Nevada Medicaid Prior Authorization page (official)
• Nevada Medicaid Provider Contact Us (official)
• Nevada Medicaid Provider Disputes or Appeals (official)

Sources