Best Diagnosis Codes Apps

181+ iOS apps curated and reviewed

4.4 avg rating

19 free apps

Updated June 2026

Every iPhone needs a few good diagnosis codes apps. We benchmark 181+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.

Top Picks for Diagnosis Codes

#1

ICD10 Consult by Evan Schoenberg

Smart, quick medical coding

Editor's Choice

🏥 Medical

4.8😊(14K ratings)

FreeAdsIn-App Purchases

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Access a comprehensive and current ICD-10-CM medical coding resource with flexible, natural language search. This app simplifies coding by understanding synonyms, acronyms, and variations in terminology, and allows for custom notes and quick access to frequently used codes.

What We Love

👍 Easy to use
🚀 Efficient search and lookup
📚 Comprehensive ICD-10 code database
🕰️ Time-saving for medical professionals

Room to Improve

🔍 Lack of code descriptions in recent updates
💸 Expensive subscription model
📢 Disruptive ads in paid version

#2

Prognosis: Your Diagnosis by Medical Joyworks LLC

Improve your diagnosis skills

Strong Contender

🏥 Medical

4.8😊(2.9K ratings)

FreeAds

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Enhance your diagnostic and management skills with interactive clinical cases. Access facts and explanations to understand the rationale behind diagnoses and treatments. New cases are added weekly, reflecting current medical trends.

What We Love

🚀 Super Amazing Awesome!
👍 Great learning app
👍 Excellent scenarios
👍 Actually Fun

Room to Improve

🐛 Contenido en español
🐛 Mécontent
🐛 Down loading problem

#3

ICD-10-CM 2026: Medical Codes by VLR Software LLC

Offline Coding & iCloud Sync

Worth Considering

🏥 Medical

0.0(0 ratings)

FreeAdsIn-App Purchases

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Access the complete 2026 ICD-10-CM medical coding database offline. Organize codes with favorites and folders, and utilize advanced search and highlighting features for efficient billing and clinical workflows. Sync data across devices with iCloud.

More Diagnosis Codes apps to explore

BlueDriver OBD2 Scan Tool

BlueDriver OBD2 Scan Tool

This app turns your smartphone into a powerful OBD2 scan tool. It allows you to read and clear trouble codes, view live data, and generate detailed repair reports for your vehicle. Understand your car's issues and make informed repair decisions.

Read and clear trouble codes (Check Engine, ABS, etc.)Generate professional-grade Repair ReportsAccess Mode 6 and smog readiness data

📊 Productivity

free with in-app purchases

epocrates: Drug Info & Pill ID

epocrates: Drug Info & Pill ID

Dosing, Interactions, & Labs

This clinical reference app empowers healthcare professionals to make safer, faster decisions. It offers comprehensive drug information, interaction checks, pill identification, lab values, and dosing calculators. Access essential clinical tools offline to enhance patient care and workflow efficiency.

Comprehensive Drug ReferenceDrug Interaction CheckerPill Identifier

free with in-app purchases

Full Code Medical Simulation

Full Code Medical Simulation

Doctor, nurse & EMT education

Engage in realistic medical simulations with over 260 virtual cases designed by experts. Practice diagnosing and treating patients, hone your clinical skills, and earn CME credits in a game-like environment. Ideal for medical students and professionals seeking to improve their decision-making.

260+ expert-written virtual casesMultiple diagnostic disciplinesRealistic patient avatars

free with in-app purchases

5 Minute Clinical Consult

5 Minute Clinical Consult

2026 Edition w/ Bonus Features

This app provides quick access to diagnostic and treatment information for over 1,000 medical conditions. It includes bonus content like pediatric diseases and differential diagnoses, with offline access and advanced search capabilities.

Diagnose and treat 1,000+ medical conditionsOffline accessDifferential diagnosis tool

Medical Coding Test Prep 2026

Medical Coding Test Prep 2026

AAPC CPC Exam Questions

Prepare for the AAPC CPC certification exam with over 1300 practice questions and detailed explanations. Utilize multiple test modes and performance analysis to efficiently study and increase your chances of passing on the first attempt.

Over 1300 practice questionsDetailed answer explanationsMultiple test modes

Find ICD Diagnosis Codes

Access a comprehensive database of ICD-9 and ICD-10 diagnosis codes offline. Search by code name or number, and view all billable codes within a group. Data is sourced directly from the Centers for Medicare and Medicaid Services.

Offline ICD-9 and ICD-10 code accessSearch by code name or numberView billable codes within groups

OBD2 Trouble Code

OBD2 Trouble Code

OBD ll Code Reader Guide

Instantly look up your car's check engine codes on the go. Access a vast database of OBD2 codes with descriptions and potential causes for all major manufacturers. Save your search history for quick reference.

OBD2 code lookupCheck engine code descriptionsPossible cause identification

Access to codes related info.

Access and manage your purchased IAPMO codes, including the UPC, UMC, and others. Make annotations, record voice notes, and view content offline. Stay informed with code errata, committee information, and breaking news.

View purchased IAPMO codesOffline accessMake annotations

FIXD OBD2 Scanner

FIXD OBD2 Scanner

Clear Your Check Engine Light

This app translates your car's diagnostic trouble codes into plain language, helping you understand potential issues and their severity. It provides maintenance reminders and offers advanced features like issue forecasting and emissions pre-checks with a premium subscription.

Translate check engine light codesUnderstand issue severityMaintenance reminders

free with in-app purchases

Nurse's Pocket Guide-Diagnosis

Nurse's Pocket Guide-Diagnosis

Nursing Diagnosis, Care Plans

This app assists nurses in creating accurate nursing diagnoses and care plans. It provides detailed information for over 400 medical conditions, including definitions, interventions, and documentation guidelines. Users can also search by patient symptom to find related diagnoses.

400+ medical conditions with nursing diagnosesNCSBN Clinical Judgment Measurement Model updatesNANDA-I and ICNP diagnoses

free with in-app purchases

CodeIQ – ICD-10 Coding Tool

CodeIQ – ICD-10 Coding Tool

ICD Codes, HCC & Claim Builder

This offline medical coding tool allows instant searching of ICD-10-CM codes and helps build and validate claims. It features color-coded HCC risk adjustment weights and saves favorite codes for quick access. All data is stored locally, ensuring privacy and no internet dependency.

Offline ICD-10-CM code lookupClaim building and validationHCC risk adjustment weights

by VLR Software LLC

This app provides a comprehensive ICD-9-CM diagnosis code database updated to 2016. It offers features for practicing billing, searching codes, and tagging favorites. An in-app upgrade to ICD-10 is available.

ICD-9-CM diagnosis codes (updated to 2016)In-app upgrade to ICD-10Universal app for iPhone, iPod Touch, and iPad

free with in-app purchases

by Nth Technologies Inc

Easily search and convert between ICD-9 and ICD-10 medical codes. Find the most specific codes with keyword searches and a "Similar Codes" feature. Save, print, and share your favorite codes.

ICD-9 to ICD-10 conversionICD-10 to ICD-9 conversionSearch by code or description

ICD10 Navigator

ICD10 Navigator

Diagnosis Code Lookup Tool

$4.99 | 100% OFF

Quickly search and reference ICD-10-CM diagnosis codes with a comprehensive offline tool. Features smart search, code browsing by chapter, and the ability to save and export favorite codes. Designed for medical professionals and students.

46,881+ ICD-10-CM codes (2026 dataset)Smart search with weighted resultsBrowse by 22 medical chapters

Code, Service, Diagnose cars

This app acts as a DIY car mechanic, allowing you to customize features, diagnose warning lights, monitor live data, and perform maintenance. Save time and money by handling common car tasks yourself.

Customize car behavior and unlock hidden featuresDiagnose and reset dashboard warning lightsMonitor real-time vehicle parameters

free with in-app purchases

ICD 10 Coding Guide – Unbound

ICD 10 Coding Guide – Unbound

2024 Medical codes fast lookup

Quickly find the latest ICD-10 medical codes with this offline mobile app. Search by code, disease, injury, drug, or keyword. Features include color-coded trees, notes, highlights, and favorites for efficient code assignment.

Offline ICD-10-CM code accessRapid search by code, disease, or keywordColor-keyed Code Trees

DSM-5-TR® Diagnosis Handbook

DSM-5-TR® Diagnosis Handbook

Differential DDx Text Revision

This app assists clinicians in making accurate psychiatric diagnoses using the latest DSM-5-TR® classifications. It features interactive decision trees and algorithms to guide users through a 6-step diagnostic process, offering differential diagnoses and detailed condition entries.

Interactive decision trees for diagnosisReview selected diagnostic pathsAlgorithms for enhanced assessment

free with in-app purchases