AAPC Coder API

AAPC · Health

Health API Key Paid Healthcare ICD-10 CPT HCPCS

AAPC Coder professional medical coding platform with API access for ICD-10, CPT, HCPCS, and DRG lookups. Supports ICD-9 to ICD-10 crosswalks, Medicare fee schedules, and compliance guidance. Used by physician practices and health systems.

Authentication

API Key API key from AAPC Coder subscription. Requires active subscription; contact AAPC for API access.

Sample Requests

GET ICD-10 code lookup

Look up an ICD-10-CM code with full description, coding notes, and compliance guidance

https://coder.aapc.com?code=E11.65&apikey={your_api_key}

Hover any highlighted part to learn what it does

curl -X GET "https://coder.aapc.com?code=E11.65&apikey=%7Byour_api_key%7D"

import requests
params = {
    "code": "E11.65",
    "apikey": "{your_api_key}"
}
response = requests.get(
    "https://coder.aapc.com",
    params=params,
)
print(response.json())

const url = new URL('https://coder.aapc.com');
url.searchParams.set('code', 'E11.65');
url.searchParams.set('apikey', '{your_api_key}');

const response = await fetch(url); 
const data = await response.json();
console.log(data);

package main

import (
	"fmt"
	"io"
	"net/http"
	"net/url"
)

func main() {
	baseURL, _ := url.Parse("https://coder.aapc.com")
	q := baseURL.Query()
	q.Set("code", "E11.65")
	q.Set("apikey", "{your_api_key}")
	baseURL.RawQuery = q.Encode()
	targetURL := baseURL.String()
	req, _ := http.NewRequest("GET", targetURL, nil)

	client := &http.Client{}
	resp, _ := client.Do(req)
	defer resp.Body.Close()
	body, _ := io.ReadAll(resp.Body)
	fmt.Println(string(body))
}

require "net/http"
require "json"

uri = URI("https://coder.aapc.com")
uri.query = URI.encode_www_form({
  "code" => "E11.65",
  "apikey" => "{your_api_key}"
})

http = Net::HTTP.new(uri.host, uri.port)
http.use_ssl = uri.scheme == "https"

req = Net::HTTP::Get.new(uri)

res = http.request(req)
puts JSON.parse(res.body)

<?php
$url = "https://coder.aapc.com?" . http_build_query([
    "code" => "E11.65",
    "apikey" => "{your_api_key}"
]);
$opts = ["http" => [
    "method" => "GET",
]];
$ctx = stream_context_create($opts);
$res = file_get_contents($url, false, $ctx);
print_r(json_decode($res, true));

Postman Setup Guide

Get Postman ↗

Requires active AAPC Coder subscription — sign up at https://coder.aapc.com/
Contact AAPC to enable API access on your account
In Postman, GET https://coder.aapc.com/api/v1/icd10?code=E11.65&apikey={key}
Response includes full code description, coding notes, and compliance flags
Use crosswalk endpoint to convert ICD-9 codes to ICD-10 equivalents

What can you build with AAPC Coder API?

AAPC Coder API is a Health API. Developers commonly use health APIs for:

accessing medical reference data and drug information
building patient-facing health tracking apps
integrating with EHR and telemedicine platforms
looking up ICD codes and clinical terminology
powering wellness and fitness applications

API Key authentication. You'll receive a key after signing up. Send it with every request — in a header or query parameter. Keep it out of client-side code and never commit it to version control. AAPC Coder API is a paid API — check the provider's pricing page before building a production integration.

New to APIs? Read our beginner's guide · Learn about API keys · What is REST?

Open documentation ↗