NLM ICD-10-PCS Procedure Codes API

National Library of Medicine · Health

Health No Auth Free & Open Healthcare Life Sciences ICD-10-PCS Procedure Codes Medical Coding

NIH/NLM search API for ICD-10-PCS procedure codes used in inpatient hospital settings. Returns procedure code descriptions for billing and clinical documentation. Free and unauthenticated.

Authentication

No authentication requiredFree to use with no key needed.

Sample Requests

GET Search ICD-10-PCS procedure codes

Search procedure codes by code prefix or description

https://clinicaltables.nlm.nih.gov/api/icd10pcs/v3?df=code,name&sf=code,name&terms=0FB&maxList=10

Hover any highlighted part to learn what it does

curl -X GET "https://clinicaltables.nlm.nih.gov/api/icd10pcs/v3?df=code%2Cname&sf=code%2Cname&terms=0FB&maxList=10"

import requests
params = {
    "df": "code,name",
    "sf": "code,name",
    "terms": "0FB",
    "maxList": "10"
}
response = requests.get(
    "https://clinicaltables.nlm.nih.gov/api/icd10pcs/v3",
    params=params,
)
print(response.json())

const url = new URL('https://clinicaltables.nlm.nih.gov/api/icd10pcs/v3');
url.searchParams.set('df', 'code,name');
url.searchParams.set('sf', 'code,name');
url.searchParams.set('terms', '0FB');
url.searchParams.set('maxList', '10');

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://clinicaltables.nlm.nih.gov/api/icd10pcs/v3")
	q := baseURL.Query()
	q.Set("df", "code,name")
	q.Set("sf", "code,name")
	q.Set("terms", "0FB")
	q.Set("maxList", "10")
	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://clinicaltables.nlm.nih.gov/api/icd10pcs/v3")
uri.query = URI.encode_www_form({
  "df" => "code,name",
  "sf" => "code,name",
  "terms" => "0FB",
  "maxList" => "10"
})

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://clinicaltables.nlm.nih.gov/api/icd10pcs/v3?" . http_build_query([
    "df" => "code,name",
    "sf" => "code,name",
    "terms" => "0FB",
    "maxList" => "10"
]);
$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 ↗

No API key required — open NIH service
In Postman, GET https://clinicaltables.nlm.nih.gov/api/icd10pcs/v3/search
Add params: sf=code,name and df=code,name and terms={your search}
ICD-10-PCS codes are 7 characters — search by prefix (e.g. 0FB) or description
Response format: [total, codes[], null, descriptions[]]

What can you build with NLM ICD-10-PCS Procedure Codes API?

NLM ICD-10-PCS Procedure Codes 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

No authentication required. This API is open — no signup or key needed. Ideal for quick prototypes and public-facing features. NLM ICD-10-PCS Procedure Codes API is free to use, making it a low-risk choice to experiment with.

New to APIs? Read our beginner's guide

Open documentation ↗