> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://imo.ferndocs.com/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://imo.ferndocs.com/_mcp/server.

# API Catalog

IMO Health's APIs are grouped into four platform areas. Precision Normalize —
documented in full in this portal's [API Reference](/api-reference) — sits within
the Terminology Server area.

> **Note**
>
> This portal documents **Precision Normalize** end to end, including generated
> TypeScript, Python, and Java SDKs. The other catalog entries below mirror the
> [production API catalog](https://developer.imohealth.com/api-catalog).

## Terminology Server

#### Terminology Server API

Secure, scalable endpoints for ingesting, searching, and managing healthcare
terminology datasets, enabling efficient access to code systems and value
sets with robust licensing controls.

#### Knowledge Graph

Access IMO's comprehensive clinical terminology data and mappings. Query
clinical concepts, relationships, and code mappings across IMO's standard
clinical terminology and industry-standard code sets.

#### [Precision Normalize](/api-reference)

**Documented in this portal.** Normalize input terms or codes to clinically
validated IMO lexicals with comprehensive mappings to ICD-10-CM, SNOMED CT,
LOINC, RxNorm, CPT and more — with official SDKs in three languages.

## Clinical AI

#### Context-Aware Extraction (CAE)

Clinical NLP that identifies clinically relevant problems and conditions
within unstructured clinical notes. Maps extracted concepts to
clinician-friendly IMO terms and standardized clinical vocabularies,
producing structured, computable data from free-text documentation.

#### De-Identification

Identify and obfuscate Protected Health Information in unstructured clinical
text. A two-step flow — PHI Identification via Named Entity Recognition, then
PHI Obfuscation with a configurable per-entity policy — supporting HIPAA Safe
Harbor workflows.

## Clinical Data Reasoning

#### Coding Intelligence API

Automated validation of diagnosis codes, enforcement of CMS rules (Excludes1),
and access to curated administrative coding sets. Supports accurate code
selection and identifies coding conflicts, helping reduce claim denials and
ensure regulatory compliance.

## Content & Data Management

#### Value Sets — GraphQL

Pre-built, ready-to-use value sets plus tools for customization. GraphQL APIs
give flexible access to value set content and management — search, create,
update, and retrieve while requesting only the data you need.

#### Crosswalks

Map multiple source codes to corresponding target codes, within the same code
system or across different ones. Create, update, delete, search, and retrieve
crosswalks.

#### Import

*Coming soon.*

#### Export

*Coming soon.*