Comparison

ICD 10 Coding Guide vs CDI+

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

ICD 10 Coding Guide

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.

Highlights
  • Offline ICD-10-CM code access
  • Rapid search by code, disease, or keyword
  • Color-keyed Code Trees
  • Notes and highlights
  • Favorites for quick access
  • Companion website
Features
Read full description

** Fast & accurate lookup of the latest ICD-10 Codes ** ICD-10 CODING GUIDE is a powerful mobile app developed by Unbound Medicine, an award-winning health care information provider with more than 5 million users worldwide. Featuring the latest ICD-10-CM data from the Centers for Medicare and Medicaid Services (CMS), this premium app helps you quickly identify the most appropriate code on your smartphone or tablet — with rapid search by code, disease, injury, drug, or keyword. No internet access is required after initial content download. FEATURES • Access to all ICD-10-CM codes • Code and keyword search for fast discovery • Color-keyed Code Trees for accurate code assignment • Make notes and highlights within any entry • 'Favorites' for bookmarking commonly used codes • Companion website for desktop convenience FREE TRIAL: What To Expect • First-time users are offered a Free Trial of Unbound's complete ICD-10 Coding Guide • After the Free Trial period ends, your iTunes account will be charged $9.99 for a one-year subscription unless you have turned off auto-renew at least 24 hours before the free trial ends. • To manage your subscriptions, open Apple's "Settings" app, tap your Apple ID at the top of the screen, tap Subscriptions, then tap the subscription you wish to manage. • NOTE: if you choose not to purchase a subscription, content will no longer be viewable after the free-trial period ends. Subscription Renewals • Your subscription will automatically renew annually and your iTunes account will be charged $9.99 unless auto-renew is turned off 24 hours prior to the end of the one-year period. • If you choose not to renew, you can continue to use the product but will not receive content updates. • To manage your subscriptions, open Apple's "Settings" app, tap your Apple ID at the top of the screen, tap Subscriptions, then tap the subscription you wish to manage. Unbound Privacy Policy: https://www.unboundmedicine.com/privacy Unbound Medicine Terms of Use: https://www.unboundmedicine.com/end_user_license_agreement

About

CDI+

This app provides guidance for coding and clinical documentation integrity professionals. It explains principles for accurate documentation to help healthcare facilities improve their records. The content is based on a long-standing, annually updated pocket guide.

Highlights
  • Accurate documentation principles
  • Coding professional guidance
  • Physician documentation support
  • Annual content updates
  • Easy-to-grasp explanations
Features
Read full description

The original CDI Pocket Guide has been a mainstay of coding and CDI professionals and physicians for over a decade. Cynthia Tang and Richard Pinson share a vision for helping hospitals achieve accurate and thorough documentation by explaining the principles behind the practices in such a way that everyone can easily grasp them. Since they wrote the first CDI Pocket Guide in 2008, it has met with resounding success, and they have updated the Guide every year since. Content includes:

Screenshots

ICD 10 Coding Guide4 screens
CDI+4 screens

Verdict

The call

The clearest difference is review sentiment: CDI+ at 100% against ICD 10 Coding Guide's 17%. CDI+ also leads on rating (5.0 vs 4.4) and in-app purchases (none vs 1). ICD 10 Coding Guide's advantage is ratings volume (167 vs 1). On price, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. ICD 10 Coding Guide sells 1 in-app purchase, starting at $9.99 per year. CDI+ asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

CDI+ holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: ICD 10 Coding Guide has 167 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 17% of ICD 10 Coding Guide's written reviews are positive against 100% of CDI+'s.

UpkeepUpdate frequency

ICD 10 Coding Guide ships an update every 11 months, CDI+ every 4 months. The most recent releases landed on October 9, 2026 and September 30, 2026 respectively.

Scorecard7 real differences · 3 level
ICD 10 Coding Guide versus CDI+: the parameters behind the verdict, then further details
ParameterICD 10 Coding GuideCDI+
PriceFreeFree
Rating4.4 (167 ratings)5.0 (1 ratings) — better
Positive reviews16.7% of reviews100.0% of reviews — better
Number of ratings167 — better1
Update frequencyEvery 11 monthsEvery 4 months — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationSubscriptionFree — better
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad, iPod
Requires iOS15.08.0 — better
Further details — not scored
Size12 MB42 MB
Age rating17+17+
DeveloperUnbound Medicine, Inc.Pinson and Tang LLC

Customer experience

ICD 10 Coding Guide

All ratings167 ratings
Positive87.4%
Neutral1.8%
Negative10.8%
Written reviews12 reviews
Positive16.7%
Neutral0.0%
Negative83.3%

CDI+

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

ICD 10 Coding Guide

Subscriptions1
  • ICD-10-CM Coding Guide14 Days trial$9.991 Year
None

CDI+

No in-app purchases

Questions

Is ICD 10 Coding Guide free?
ICD 10 Coding Guide is free to download, with in-app purchases available.
Is CDI+ free?
CDI+ is free to download, with no in-app purchases.
Which has better reviews, ICD 10 Coding Guide or CDI+?
CDI+ is rated higher. ICD 10 Coding Guide averages 4.4 out of 5 from 167 ratings, while CDI+ averages 5.0 from 1 ratings.
Do ICD 10 Coding Guide or CDI+ have ads?
Neither ICD 10 Coding Guide nor CDI+ shows ads.
Which is updated more often, ICD 10 Coding Guide or CDI+?
ICD 10 Coding Guide ships an update every 11 months, and CDI+ every 4 months. Most recently, ICD 10 Coding Guide was updated on October 9, 2026 and CDI+ on September 30, 2026.

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