# ICD 9 vs E/M Coder

The clearest difference is review sentiment: ICD 9 at 93% against E/M Coder's 25%. ICD 9 also leads on rating (4.3 vs 4.0). E/M Coder's advantage is update cadence (every 2 weeks vs every 5 weeks) and iOS requirement (9.0 vs 12.3). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ICD 9 holds the better App Store score, 4.3 against 4.0. Both are backed by a comparable volume of ratings — 22 and 8 respectively. Written reviews point the same way: 93% of ICD 9's written reviews are positive against 25% of E/M Coder's.

ICD 9 ships an update every 5 weeks, E/M Coder every 2 weeks. The most recent releases landed on October 1, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | ICD 9 | E/M Coder |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (22 ratings)](https://appshunter.io/ios/app/icd-9-10/id821550817/reviews)** | [4.0 (8 ratings)](https://appshunter.io/ios/app/em-coder/id1548963112/reviews) |
| Number of ratings | **22** | 8 |
| Positive reviews | **92.6% of reviews** | 25.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 10 MB | 49 MB |
| Requires iOS | 12.3 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CareCloud Corp.](https://appshunter.io/developer/431253949) | [StatNote, Inc.](https://appshunter.io/developer/1548963114) |

## 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


### E/M Coder

[App page](https://appshunter.io/ios/app/em-coder/id1548963112)

This tool helps outpatient healthcare professionals determine the appropriate E/M code for patient visits. It guides users through medical decision-making or time spent to suggest visit levels. The app is based on AMA CPT® guidelines and CMS 2021 PFS Final Rule updates.

**Highlights:** Determine E/M code for outpatient visits, Based on medical decision-making, Based on time spent, Uses AMA CPT® guidelines, Updated with CMS 2021 PFS Final Rule

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is ICD 9 free?

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

### Is E/M Coder free?

E/M Coder is free to download, with no in-app purchases.

### Which has better reviews, ICD 9 or E/M Coder?

ICD 9 is rated higher. ICD 9 averages 4.3 out of 5 from 22 ratings, while E/M Coder averages 4.0 from 8 ratings.

### Do ICD 9 or E/M Coder have ads?

Neither ICD 9 nor E/M Coder shows ads.

### Which is updated more often, ICD 9 or E/M Coder?

ICD 9 ships an update every 5 weeks, and E/M Coder every 2 weeks. Most recently, ICD 9 was updated on October 1, 2026 and E/M Coder on October 13, 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.*