Clinical coding that stays inside the classification
Manual code navigation in the Code Navigator, live DRG grouping, and Code Captain, an AI autocoder that follows the classification step by step: search the index, follow the cross-references, verify in the tables. Every code it keeps traces back to the document and the sentence it came from. These screens show coding in ICD-10-AM and ACHI grouping to AR-DRG, on the V11.0 grouper certified by IHACPA; ICD-10-CM and ICD-10-PCS grouping to MS-DRG are live for coding in the United States books.
Just need the coding screen, without the rest of HealthOS? Code Navigator and Code Captain are the same coding screens on their own, by monthly subscription.

Index search first, then code table verification, as the coding standards require.
The AI autocoder: it navigates the classification and refuses any code it can’t prove.
The grouping updates with every code, so a grouping error shows before the episode is finalised.
A finalised code set and DRG move to the claiming queue with no re-keying.
Code with the classification open, and show your working
Search the index, verify in the tables
Type a term such as “cellulitis” and the Code Navigator searches the classification index, showing lead terms, modifiers and cross-references as they appear in print. Follow a reference into the tables, drill to the character level the code needs, and read inclusions, exclusions and coding notes inline.
- Diagnosis and procedure codes in the same interface
- Procedure codes found in the index and verified in the Tabular List, with inclusions and exclusions inline
- Hospital-acquired complications flagged against the national list, with the condition onset to confirm
- The coding standards a code cites, the codes they direct, and the codes they forbid, with national and state advice in the jurisdiction that applies
- Every assignment timestamped and attributed in the coding timeline

Live DRG as you code
As codes are added the grouper runs and returns the Diagnosis Related Group. The result updates with every change, so an error DRG or an ungroupable episode is visible while the record is still open.

An agent that follows the classification, step by step
Code Captain reads the clinical record for an episode: discharge summaries, progress notes, procedure reports and pathology. For each condition or procedure it searches the code index, follows every cross-reference, then verifies the candidate in the code tables. A code it can’t trace through the index and the tables is dropped. Codes are not taken from the model’s memory. It codes the full picture: a neoplasm’s morphology with its site, and the external cause of a poisoning or injury. It applies the coding standards for the episode, and flags a diagnosis on the hospital-acquired-complications list for the coder to confirm.
- A pre-admission pass codes only from what was on file before the patient arrived
- A post-discharge pass codes from the full episode record
- Each pass is independent and produces its own traceable result

Every code traces back to its source
Each code shows the document, the sentence and the classification path behind it: the search term, the index result, the cross-reference and the tabular check. Patient identifiers are removed before any text goes to the model, and the screen shows what was removed and what was sent.

Try the Code Navigator and Code Captain.
Tech previewBoth run in the HealthOS app, on their own, by monthly subscription. Sign up without a card; the tech preview is free until 1 January 2027.
The coder decides
Code Captain’s output is a draft. The coder reviews each code, then accepts, changes or rejects it, and the grouper re-runs on the accepted set. Every run is logged: which model, which documents were read, which codes were proposed and accepted, and the final grouping. Your organisation chooses the model that powers it, separately from other AI features.
Coding feeds the claim
An episode with a finalised code set and a DRG appears in the claiming queue, ready for Medicare, DVA or private health insurance submission, with no re-keying between the coding screen and the claim.
- Coded episodes appear in the Ready to Claim queue
- DRG grouping drives the funding calculation
- Remittances reconcile against the original claim
See it in action
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See clinical coding on a real episode
We’ll walk you through the Code Navigator and Code Captain on real clinical data.
