Healthcare data, finally searchable.
Every code, every file format, every specification — in one fast, free, modern reference.
98K+
ICD-10 codes
8M+
NPI providers
8.8K+
HCPCS codes
56+
tools & references
ICD-10-CM Search — Live Preview
Natural language search across 98,000+ diagnosis codes · Data: CDC/CMS (public domain)
0 results
CodeDescriptionChapterBillable
No codes found for “type 2 diabetes”.
Want this as an API? Get programmatic access to all code lookups.
837P File Viewer — Preview
Upload a professional claim file — parsed and color-coded instantly
Drop your 837P file here
or click to browse
Files are parsed entirely in your browser. No data is uploaded to our servers.
Raw X12 (input)
ISA*00* *00* *ZZ*SENDER
GS*HC*SENDER*RECEIVER*20260901*1200*1*X*005010X222A1~
CLM*CLAIM123*250***11:B:1*Y*A*Y*Y~
HI*ABK:E119~
SV1*HC:99213*75*UN*1***1~
DTP*472*D8*20260901~
Parsed (output)
Claim ID: CLAIM123
Amount: $250.00
Place of Service: 11 (Office)
Diagnosis: E11.9 Type 2 diabetes
Procedure: 99213 (CPT — description requires AMA license)
Date: 09/01/2026
All Tools
56 tools across 7 categories — all free, no login required
ICD-10-CM SearchMost popular
98,000+ diagnosis codes with natural language search
Source: CDC/CMS
ICD-10-PCS LookupComing soon
78,000+ inpatient procedure codes
Source: CMS
HCPCS Level II Search
7,000+ procedure & supply codes (public domain)
Source: CMS
NPI Provider LookupMost popular
8M+ providers — search by name, specialty, location
Source: CMS NPPES
CARC/RARC Lookup
Claim adjustment reason codes and remittance remark codes with plain-English explanations
Source: Original descriptions (codes maintained by X12)
Place of Service Codes
All POS codes with facility vs non-facility distinction
Source: CMS
Revenue Code Lookup
UB-04 revenue codes by number or description
Source: CMS Claims Processing Manual
Taxonomy Code Finder
Interactive specialty → taxonomy code finder
Source: NUCC
Type of Bill Reference
4-digit TOB codes decoded
Source: CMS Claims Processing Manual
Modifier Reference
HCPCS modifiers with usage rules and common mistakes
Source: CMS (HCPCS modifiers only)
Condition / Occurrence / Value CodesComing soon
UB-04 field codes for institutional billing
Source: CMS Claims Processing Manual
DRG LookupComing soon
MS-DRG with relative weights and average length of stay
Source: CMS
NDC Drug Code SearchComing soon
300K+ drug codes — search by name, NDC, or labeler
Source: FDA
SNOMED CT BrowserComing soon
Concept search with hierarchies and ICD-10 crosswalk
Source: NLM/UMLS (free license)
LOINC Code SearchComing soon
Lab test codes with FHIR mappings
Source: Regenstrief (free license)
Guides & References
Practical walkthroughs for developers, coders, and billers
Same data, via API.
Everything on this site is available as a REST API. Free tier included. Build healthcare data into your product without maintaining your own datasets.
GET/v1/codes/icd10?q=diabetes
{
"results": [
{
"code": "E11.9",
"description": "Type 2 diabetes
mellitus without complications",
"billable": true,
"source": "CDC/CMS (public domain)"
}
],
"total": 847,
"page": 1
}Free500 req/day
All code lookups · NPI search · Rate limited
Pro10,000 req/day
Batch endpoints · EDI parsing · Priority support
Enterprise100,000 req/day
White-label ready · Custom batches · SLA guarantee