Field Toolkits & Frameworks

Core references for inpatient coding.

We maintain this repository to bridge the gap between theoretical test prep and hospital floor reality. Access official manuals, downloadable cheat sheets, and diagnostic calibration labs.

Core Reference Guide

The Coder's Anatomy Mapping Framework

A surgical-grade visual mapping cheat sheet for the Heart, Lungs, and GI tract. Stop flipping back and forth between root operations and procedural anatomy.

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Downloadable PDF

Anatomy Mapping Cheat Sheet: Heart, Lungs & GI

High-yield reference chart connecting procedural terminology with ICD-10-PCS body parts and root operation logic.

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Downloadable PDF

Pressure Ulcer HAC & POA Coding Guide

Step-by-step sequencing breakdown for stage progression, unstageable documentation, and present on admission (POA) indicators.

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Core Toolkit

The Coder's Anatomy Mapping Framework

The foundational framework every inpatient coder needs to quickly identify root operation intent in complex surgical operative reports.

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Interactive Lesson

Maternity Principal Diagnosis Sequencing

Master the sequencing rules that dictate relative weight and DRG shifts in obstetric admissions with our interactive calibration lab.

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Sample Case Study

Mechanical Ventilation Counting Problem

Interactive case audit exploring how the OIG identified $79 million in improper payments for continuous invasive mechanical ventilation.

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Clinical Logic Lab

Stroke Sequencing: Hemiplegia vs. Monoplegia

Understand why the post-stroke weakness guideline applies strictly to hemiplegia and how to code documented monoplegia without audit errors.

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Official CMS Portal

CMS ICD-10 Hub & Official Guidelines

Direct portal access to the FY2026 ICD-10-CM/PCS Official Guidelines for Coding and Reporting and CMS regulatory updates.

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Official Reference

MS-DRG Definitions Manual v43

The definitive logic table and grouper manual for inpatient hospital reimbursement, MCC/CC lists, and surgical hierarchy tables.

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Payer Intelligence

Payer & MAC Coverage Policy Directory

Direct links to UnitedHealthcare, Aetna, and CMS Local Coverage Determinations (LCDs) for medical necessity and audit defense.

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The 4-Step Research Framework

How master auditors approach chart documentation when guidelines and clinical notes appear to conflict.

01

Isolate

Identify the core clinical ambiguity. Separate the physician's narrative from official billing requirements.

02

Consult

Reference the Official Guidelines first. Never bypass regulatory fundamentals for quick web search answers.

03

Validate

Verify against AHA Coding Clinic precedents to ensure your rationale withstands retrospective audit scrutiny.

04

Synthesize

Formulate an audit-ready rationale. A code assignment is only as strong as the intellectual trail supporting it.

Never Miss a Regulatory Update

Get immediate email notifications whenever CMS updates Excludes notes, MS-DRG weights, or inpatient guideline interpretations.