> ## Documentation Index > Fetch the complete documentation index at: https://docs.rcintell.com/llms.txt > Use this file to discover all available pages before exploring further. # MUE limits — Hospital Outpatient Services > Get MUE limits for a code in the Facility OP Hospital Services table. ## OpenAPI ````yaml /docs/openapi.client.json get /v1/ncci/mue/hosp-op/{code} openapi: 3.1.0 info: description: >- Client API for RCIntel. Admin ingest, catalog sync, and internal audit routes are omitted. See Guides → Which API to use. summary: Multi-tenant knowledge API for healthcare revenue cycle management. title: Healthcare Knowledge Layer version: 0.1.0 servers: [] security: [] tags: - description: >- Geographic payer policy lookup (national NCD vs MAC LCD vs state). Query payer, code, state, plan_type. Each row includes geo_scope and document_version. name: policies - description: >- Payer network directory — search payers, check prior auth requirements, view filing rules, denial patterns, and appeal levels. name: payers - description: >- Resolve healthcare billing knowledge across the L1-L6 layer stack. Includes payment calculation, billing guidance, and per-layer queries. name: knowledge - description: >- CMS Fee Schedule lookups — OPPS (Addendum B / APC), DMEPOS (state-level pricing), and Clinical Lab Fee Schedule (CLFS). name: fee-schedules - description: >- NCCI (National Correct Coding Initiative) — dedicated MUE limits, PTP bundling edits, add-on code edits, and code pair validation. name: ncci - description: >- Service code intelligence — CPT/HCPCS lookup, RVU data, NCCI edits, payment calculation, implant/GUDID search, and service group classification. name: codes - description: >- Submit asynchronous AI agent jobs for code research, medical necessity, and denial resolution. Poll for results and retrieve reasoning traces. name: agents - description: >- Register and manage healthcare facilities by CCN (Medicare Provider Number). Each facility is the root entity for knowledge resolution. name: facilities - description: >- NPI Registry — live search against CMS NPPES API for provider and organization National Provider Identifiers. name: npi - description: >- OpenFDA drug product lookup by NDC. Includes product-level fields with normalized ingredient and package detail. name: drugs - description: Health checks, service metadata, and Prometheus metrics. name: system paths: /v1/ncci/mue/hosp-op/{code}: get: tags: - ncci summary: MUE limits — Hospital Outpatient Services description: Get MUE limits for a code in the Facility OP Hospital Services table. operationId: get_mue_hosp_op_v1_ncci_mue_hosp_op__code__get parameters: - description: >- Billing or terminology code value (CPT/HCPCS/NDC/etc depending on endpoint context). in: path name: code required: true schema: title: Code type: string - description: Date of service (YYYY-MM-DD) in: query name: date_of_service required: false schema: anyOf: - format: date type: string - type: 'null' description: Date of service (YYYY-MM-DD) title: Date Of Service - description: Include AI-generated clinical summary in: query name: include_summary required: false schema: default: false description: Include AI-generated clinical summary title: Include Summary type: boolean responses: '200': content: application/json: schema: $ref: '#/components/schemas/MUEResponse' description: Successful Response '422': content: application/json: schema: $ref: '#/components/schemas/HTTPValidationError' description: Validation Error security: - APIKeyHeader: [] components: schemas: MUEResponse: description: MUE (Medically Unlikely Edit) for a single code + setting. properties: ai_summary: anyOf: - type: string - type: 'null' description: AI-generated plain-English summary title: Ai Summary date_of_service: anyOf: - type: string - type: 'null' description: Service date used for lookup title: Date Of Service mue_adj_ind: anyOf: - type: string - type: 'null' description: >- MAI label: '1 Line Edit', '2 Date of Service Edit: Policy', '3 Date of Service Edit: Clinical' title: Mue Adj Ind mue_rationale: anyOf: - type: string - type: 'null' description: 'CMS rationale (e.g. Clinical: Data)' title: Mue Rationale mue_type: anyOf: - type: string - type: 'null' description: 'MUE table: practitioner, hosp-op, or dme' title: Mue Type mue_value: anyOf: - type: integer - type: 'null' description: Maximum units of service per encounter title: Mue Value proc_cd: description: HCPCS/CPT procedure code title: Proc Cd type: string sentinel: anyOf: - $ref: '#/components/schemas/SentinelBlock' - type: 'null' description: >- SENTINEL trust verdict for the AI summary. Present whenever include_summary=true. Use sentinel.escalation_required to decide whether to show the summary unattended or route it to a human reviewer. version_effective_dt: anyOf: - type: string - type: 'null' description: Effective date of the CMS NCCI version title: Version Effective Dt version_posted_dt: anyOf: - type: string - type: 'null' description: Date the CMS version was posted title: Version Posted Dt required: - proc_cd title: MUEResponse type: object HTTPValidationError: properties: detail: items: $ref: '#/components/schemas/ValidationError' title: Detail type: array title: HTTPValidationError type: object SentinelBlock: additionalProperties: true description: |- SENTINEL output attached to a healthcare-impacting response. ``verdict`` is the deterministic ``SentinelObservatory`` output (always populated when the agent ran). ``audit`` is the optional LLM-powered ``SentinelAuditor`` result (populated when SENTINEL was running in SHADOW or ACTIVE mode for this agent). properties: audit: anyOf: - $ref: '#/components/schemas/SentinelAuditBlock' - type: 'null' description: >- LLM-powered audit result (present when SENTINEL ran in shadow/active mode). authority_level: anyOf: - type: string - type: 'null' description: full_auto | act_and_notify | human_required | quarantine title: Authority Level escalation_required: default: false description: >- True if the verdict requires human review before acting on the output. title: Escalation Required type: boolean patterns_detected: description: Failure patterns the SENTINEL fingerprinter found in the trace. items: additionalProperties: true type: object title: Patterns Detected type: array trust_score: anyOf: - type: number - type: 'null' description: Overall SENTINEL trust score (0.0–1.0). title: Trust Score title: SentinelBlock type: object ValidationError: properties: ctx: title: Context type: object input: title: Input loc: items: anyOf: - type: string - type: integer title: Location type: array msg: title: Message type: string type: title: Error Type type: string required: - loc - msg - type title: ValidationError type: object SentinelAuditBlock: additionalProperties: true description: Subset of ``SentinelAuditResult`` that downstream callers care about. properties: composite_score: anyOf: - type: number - type: 'null' description: Weighted average of all audit dimensions (0.0–1.0). title: Composite Score findings: description: Per-dimension findings with severity + remediation. items: additionalProperties: true type: object title: Findings type: array flags: description: Failed dimensions that pushed the result towards yellow/red. items: type: string title: Flags type: array security_findings: description: Security-only findings (PHI, treatment safety, failover). items: additionalProperties: true type: object title: Security Findings type: array security_score: anyOf: - type: number - type: 'null' description: >- Average of PHI exposure, security compliance, failover safety, treatment safety. title: Security Score tier: anyOf: - type: string - type: 'null' description: 'LLM-audit tier: ''green'', ''yellow'', or ''red''.' title: Tier title: SentinelAuditBlock type: object securitySchemes: APIKeyHeader: in: header name: X-API-Key type: apiKey ````