The right code, with the chart evidence beside it.

Himio is clinical decision support for inpatient coding and CDI. It reads the record, proposes or checks the ICD-10 code set, and quotes the documentation behind every code, so coders finish faster and fewer charts need a second-level review.

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Built for HIM, coding and CDI teams in acute-care hospitals and health systems. Your coders make the final call; Himio shows its work.

Validate · Encounter 4471-B3 of 14 codes shown
PROGRESS NOTE · HOSPITAL DAY 2

Worsening dyspnea overnight, SpO2 84% on room air, ABG pO2 52. Acute hypoxic respiratory failure, placed on BiPAP with improvement. Na 129 this AM. Echo EF 30%.

  • J96.01 Acute respiratory failure with hypoxia Supported Quoted above. Treated with BiPAP; POA: Y. MCC.
  • E87.1 Hyponatremia Query Lab value only, no provider diagnosis. Held for a physician query, not coded.
  • I50.9 Heart failure, unspecified Query EF documented, but acuity and type are not. No added specificity without a query.
Every suggestion links back to its source line.

Illustrative example on a synthetic chart.

Fewer charts that need a second look.

Himio supports the coder’s judgment rather than replacing it. The goal is a code set that is right on the first pass, with the reason for every code in plain view.

  • Accuracy you can trace

    Every suggested or validated code carries a verbatim quote from the record, its UHDDS reportability basis and its POA status. Where documentation is ambiguous, Himio drafts a non-leading query instead of guessing.

    Matters most to HIM directors and compliance

  • Coder time back

    Coders start from a sequenced draft, with the principal diagnosis first and secondary diagnoses and ICD-10-PCS procedures included. They confirm against the evidence instead of searching the full record line by line.

    Matters most to coding managers and coders

  • Less second-level review

    Validate and Audit check a finished code set against the chart, CC/MCC tables and the Official Coding Guidelines before the account is final, so reviewers spend their time on the charts that truly need judgment.

    Matters most to CDI managers and auditors

For finance leaders: Himio shows the DRG impact of each finding so you can see where documentation risk sits. It is decision support for coding and CDI. It does not set charges, submit claims or change billing.

Three ways in, one pipeline.

Start from a blank chart, a finished code set or a full documentation review. Each mode runs the same extraction, retrieval and checks, and every code is anchored to a verbatim quote from the chart.

Suggest

Code from a blank chart

Start with an uncoded chart. Himio reads the full clinical documentation, extracts every codeable concept, retrieves CMS-verified ICD-10 candidates and builds a complete code set, with the principal diagnosis sequenced first and all secondary diagnoses and ICD-10-PCS procedures included.

  • Multi-step pipeline: extract, retrieve, re-rank
  • PDx selected per Official Coding Guidelines and UHDDS
  • ICD-10-PCS procedure extraction included
  • Queries drafted for ambiguous documentation

Validate

Check codes already assigned

Enter the code set and provide the chart. Himio cross-references every code against the documentation and flags missing CCs and MCCs with the exact note that supports them, before the account is final.

  • Every gap backed by a verbatim evidence quote
  • UHDDS basis verified for each secondary diagnosis
  • CC/MCC checked against CMS FY2026 tables
  • DRG impact shown for each gap, for review

Audit

Full documentation review

A complete clinical documentation integrity review, through an Epic SMART on FHIR launch (Epic sandbox today) or a standalone chart upload. Himio validates the DRG, detects compliance flags, analyzes POA and HAC status and reconciles the full chart, with queries ready for review.

  • Epic SMART on FHIR launch (sandbox), or chart upload
  • DRG validation, with impact shown for each finding
  • Compliance flags: unsupported codes, POA, HAC/PSI, laterality
  • Reconciliation: missed codes, missed queries, exclusions

EHR integration (Epic sandbox)

Connects to Epic through SMART on FHIR (R4) with a single OAuth2 login, currently running in the Epic sandbox. Demographics, encounters, diagnoses, procedures, labs and documents are pulled directly, with no manual exports.

Queries drafted to AHIMA/ACDIS guidance

Non-leading, multiple-choice physician queries, pre-populated with clinical indicators from the chart and ready for your CDI team to review and send.

Compliance flag detection

Codes without documentation support, POA errors, laterality mismatches and HAC/PSI exposure, each rated high, medium or low with the specific guideline involved, caught before the account is final.

All three modes run on the same pipeline, with two ways in: a SMART on FHIR launch from Epic (currently in the Epic sandbox) or a manual chart upload as PDF, DOCX or HL7.

Pick a mode. Connect or upload. Results in under two minutes.

The difference between modes is what you start with and what you get back. The pipeline underneath is the same.

<120 s
Typical time from chart load to complete audit results
100%
Audit checks backed by cited clinical evidence from the chart
20
Rule-based checks on every result
0 PHI
Patient identifiers stored. Only encounter IDs and diagnosis codes persist.

  1. Connect your EHR or upload the chart

    Launch Himio from Epic via SMART on FHIR (Epic sandbox today), or upload the discharge summary, H&P, operative notes, labs and radiology reports as PDF, DOCX or HL7. In Validate mode, also enter the codes already assigned.

    Epic SMART launchFHIR R4PDF / DOCX / HL7

  2. Every codeable concept is extracted

    Himio reads the full clinical record and extracts diagnoses, procedures, conditions and device status. Each one is tagged with its UHDDS reportability basis, POA status and a verbatim evidence quote from the chart.

    UHDDS: evaluated / treated / monitoredPOAVerbatim quotes

  3. ICD-10 candidates are retrieved and ranked

    Each concept is matched against the CMS FY2026 ICD-10-CM/PCS code set using hybrid keyword and semantic search. Candidates are ranked by guideline specificity, CC/MCC designation and MS-DRG grouping. The principal diagnosis is selected per UHDDS and the Official Coding Guidelines.

    ICD-10-CM/PCS FY2026MS-DRG v43.0CC/MCC

  4. Review findings, queries and gaps

    Results stream back as they are ready. The coder reviews the suggested or validated code set, DRG impact, compliance flags and reconciliation, then exports the full audit packet.

    Missed codes → coder confirmsMissed queries → physicianExclusions → audit trailPDF export

HIPAA-aligned from the ground up.

Built with the controls your compliance and IT security teams expect from enterprise clinical software.

Append-only audit logs (HIPAA §164.312(b))

Every access, query, case action and login is written to an immutable audit trail. The application role cannot modify or delete log records.

No PHI storage

Patient names, dates of birth and MRNs are fetched from the FHIR server at audit time but never written to the Himio database. Only encounter IDs and coded diagnosis data persist.

Multi-tenant row-level security

Supabase row-level security policies enforce strict tenant isolation. No facility can access another facility’s cases or findings, even on a shared database instance.

BAA-ready infrastructure

Designed to operate under Business Associate Agreements with all underlying technology vendors.

Security controls Enabled
HTTPS enforced with HSTSTRANSPORT
Secure, httpOnly session cookiesSESSION
X-Frame-Options: DENYFRAMING
MIME sniffing preventionXSS
Referrer-Policy enforcedPRIVACY
Row-level security in PostgresTENANT
Append-only audit log tableHIPAA
Token refresh and scoped FHIR accessOAUTH2
No PHI written to databaseMIN USE
BAA-compatible vendor stackCONTRACT

Built for the people accountable for the code set.

HIM directors

See accuracy and review workload across Suggest, Validate and Audit, with every finding traceable to a specific guideline, CMS rule or chart line.

CDI managers

Run Audit on concurrent charts before rounds. Himio surfaces documentation gaps and POA ambiguities and drafts non-leading physician queries for your specialists to review.

Hospital CFOs

Know where documentation risk sits before accounts are final. DRG impact is shown for review; Himio does not set charges or submit claims.

Coders

Use Suggest on uncoded charts or Validate your own code set. Every code comes with its evidence quote, so PDx sequencing and CC/MCC capture are easy to confirm.

Physician advisors

Review drafted queries before they reach physicians. Queries are drafted to follow AHIMA/ACDIS query practice guidance and to stay non-leading.

Compliance officers

Spot-check accounts before they are final and run retrospective reviews, with each finding tied to the guideline or rule behind it.

See Himio on your own workflow.

Whether you want a live demo or have questions about fit for your coding and CDI team, fill out the form and we’ll be in touch within two business days.

  • A live demo with your EHR
  • HIPAA-aligned, BAA-ready engagements
  • A response within two business days

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