# ICD 9 vs ICD10 Diseases Classifications

The clearest difference is in-app purchases: ICD 9 at none against ICD10 Diseases Classifications's 5. ICD 9 also leads on ads (none vs shown) and update cadence (every 5 weeks vs every 4 months). On price, rating, review sentiment and ratings volume there is nothing between them.

Both are free to download. ICD10 Diseases Classifications sells 5 in-app purchases, starting at $1.49 per month. ICD 9 asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.3 for ICD 9 against 4.3 for ICD10 Diseases Classifications. Both are backed by a comparable volume of ratings — 22 and 16 respectively. Written reviews are what separate them: 93% of ICD 9's written reviews are positive against 100% of ICD10 Diseases Classifications's.

ICD 9 ships an update every 5 weeks, ICD10 Diseases Classifications every 4 months. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | ICD 9 | ICD10 Diseases Classifications |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (22 ratings)](https://appshunter.io/ios/app/icd-9-10/id821550817/reviews)** | [4.3 (16 ratings)](https://appshunter.io/ios/app/icd10-diseases-classifications/id1076513520/reviews) |
| Number of ratings | **22** | 16 |
| Positive reviews | 92.6% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 5 weeks** | Every 4 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 10 MB | 46 MB |
| Requires iOS | **12.3** | 13.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 17+ |
| Developer | [CareCloud Corp.](https://appshunter.io/developer/431253949) | [Skyscape Medpresso Inc](https://appshunter.io/developer/818609416) |

## What reviewers say

### ICD 9

[App page](https://appshunter.io/ios/app/icd-9-10/id821550817)

This app facilitates the transition to ICD-10 coding for medical professionals. It offers quick conversion between ICD-9 and ICD-10 diagnostic codes, with detailed descriptions and alternative codes. Users can also search for codes and save frequently used ones for fast access.

**Highlights:** ICD-9 to ICD-10 conversion, Detailed ICD-10 code descriptions, View ICD-10 alternatives, Search ICD-10 and view ICD-9, Access specialty common codes

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Very easy to use
- 🚀 Quick and to the point
- 👍 User-friendly for coders and medical professionals
- 💡 Excellent crosswalk tool (ICD-9 to ICD-10)
- 💰 Free and valuable

**What reviewers complain about**

- 👎 Few specialties listed (e.g., nephrology missing)
- 👎 Search can be wonky at times
- 👎 Missing some specifics
- 👎 Wish it showed more codes around the searched code
- 👎 Decimal point is sometimes optional in EHR, causing minor issues

**Reported bugs**

- First search yields no code available
- Search can be wonky at times
- Difficult to search and convert
- Can't find simple codes

**Requested features**

- Add more specialties (e.g., nephrology)
- Show more codes around the searched code for inexact matches
- Allow reorganization of favorite list by ICD 9 numerical order, ICD 10 ABC order, and customized order
- Make decimal optional for input


### ICD10 Diseases Classifications

[App page](https://appshunter.io/ios/app/icd10-diseases-classifications/id1076513520)

Access the official system for assigning medical codes to diagnoses and procedures. Features updated codes for 2025, including new classifications for cancer remission, hypoglycemia, obesity, and mental health disorders. Offers sample content for free with in-app purchases to unlock full access.

**Highlights:** Official ICD-10-CM coding system, 2025 code updates, Index of Drugs and Chemicals, Index of Diseases and Injuries, Index of Neoplasm, Updates for cancer, hypoglycemia, obesity, mental health

**Features:** Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ICD 10 CM 1 Month Sub. | $1.49 | per month |
| ICD 10 CM 6 Month Sub | $4.99 | per 6 months |
| ICD10 CM 1-Year Subscription | $7.99 | per year |
| ICD10-Clinical Modification | $1.99 | one-time |
| ICD10-Clinical Modification 22 | $1.99 | one-time |


## Frequently asked questions

### Is ICD 9 free?

ICD 9 is free to download, with no in-app purchases.

### Is ICD10 Diseases Classifications free?

ICD10 Diseases Classifications is free to download, with in-app purchases available.

### Which has better reviews, ICD 9 or ICD10 Diseases Classifications?

ICD 9 is rated higher. ICD 9 averages 4.3 out of 5 from 22 ratings, while ICD10 Diseases Classifications averages 4.3 from 16 ratings.

### Do ICD 9 or ICD10 Diseases Classifications have ads?

ICD10 Diseases Classifications shows ads; ICD 9 does not.

### Which is updated more often, ICD 9 or ICD10 Diseases Classifications?

ICD 9 ships an update every 5 weeks, and ICD10 Diseases Classifications every 4 months. Most recently, ICD 9 was updated on October 26, 2026 and ICD10 Diseases Classifications on October 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*