Medical Coding Data, Codes & Billing Tools
Authoritative, searchable ICD-10 codes, HCPCS Level II procedure codes, Medicare RVU fee schedules, NCCI bundling edits, and CPC exam prep. Find and verify medical billing codes fast. The most complete medical billing codes and medical coding data platform. Trusted by professional coders, medical billers, and CPC students.
Core Medical Coding Databases
Direct access to government-sourced medical codes verified for FY2027.
ICD-10-CM Codes
73,000+ FY2027 clinical modification codes across 22 CDC chapters. Billable flags, Excludes notes and clinical documentation guidance.
HCPCS Level II
Quarterly CMS code set for injectable drugs (J-codes), DME, ambulance and prosthetics. Updated Q4 2026.
Medicare RVU & PFS
Work RVU, PE RVU, Malpractice RVU, geographic GPCI adjustments and calculated physician fee schedule rates.
NCCI / CCI Edits
Procedure-to-procedure PTP code pair edits, modifier indicators, and Medically Unlikely Edit unit limits.
Frequently Accessed ICD-10 Codes
Most-searched diagnosis codes with billable status and clinical context.
| Code | Descriptor | Status | Lookup |
|---|---|---|---|
| I10 |
Essential (primary) hypertension
I10 represents high blood pressure that does not have a known secondary cause. In the ICD-10-CM clas...
|
Billable Code | Details |
| E11.9 |
Type 2 diabetes mellitus without complications
E11.9 is the most frequently billed diabetes diagnosis code, indicating adult-onset or non-insulin d...
|
Billable Code | Details |
| Z23 |
Encounter for immunization
Z23 is assigned for encounters when an individual receives a vaccination....
|
Billable Code | Details |
| Z00.00 |
Encounter for general adult medical examination without abnormal findings
Used for routine wellness exams and annual physicals when no abnormal clinical findings are discover...
|
Billable Code | Details |
| R05.9 |
Cough, unspecified
Assigned for cough when no definitive respiratory infection has been verified....
|
Billable Code | Details |
| M54.50 |
Low back pain, unspecified
Replaced legacy deleted code M54.5 during the 2022 update cycle....
|
Billable Code | Details |
Professional Coding Tools
Interactive billing compliance utilities. Free, no account required.
Medicare RVU Calculator
Estimate physician fee schedule payments by combining Work RVU, PE RVU, Malpractice RVU and GPCI geographic locality adjustments.
Launch Calculator →NCCI Edit Checker
Verify PTP bundling edits for any code pair, identify modifier indicator bypass options, and view MUE unit limits for compliance audits.
Check Code Pair →7th Character Builder
Interactive selector for Chapter 19 injury codes. Correctly handles initial (A), subsequent (D), sequela (S) encounters and placeholder X rules.
Build 7th Character →ICD-9 to ICD-10 Crosswalk
Official CMS General Equivalence Mappings (GEM). Convert legacy ICD-9 codes to ICD-10-CM with exact match, approximate match and combination flags.
Convert Codes →CPT Modifiers & Billing Rules
Official modifier definitions, clinical guidelines and documentation requirements.
Modifier 25 indicates that on the day a minor procedure was performed, the patient condition re...
Modifier 59 identifies procedures or services, other than E/M services, that are not normally r...
Modifier 26 indicates that only the physician professional component (interpretation and writte...
Modifier TC indicates that only the technical component of a diagnostic procedure (equipment, s...
Modifier 22 indicates that the work required to perform a service was substantially greater tha...
Modifier 50 identifies bilateral procedures performed during the same operative session....
Modifier 51 indicates that multiple procedures, other than E/M services, were performed during ...
Modifier 52 indicates that a service or procedure was partially reduced or eliminated at physic...
Modifier 53 indicates that a surgical or diagnostic procedure was terminated due to extenuating...
Modifier 58 indicates that a procedure during a global postoperative period was planned or stag...
Modifier 76 indicates that a procedure or service was repeated subsequent to the original servi...
Modifier 77 indicates that a procedure was repeated on the same day by a different physician....
Modifier 78 indicates that an unplanned return to the operating room occurred during the global...
Modifier 79 indicates that a procedure performed during a global surgery period was completely ...
Modifier XE is a CMS HCPCS modifier identifying a service that is distinct because it occurred ...
Modifier XP identifies a service that is distinct because it was performed by a different pract...
Modifier XS identifies a service that is distinct because it was performed on a separate organ ...
Modifier XU identifies a service that is distinct because it does not overlap the usual compone...
Clinical Specialty Coding Hubs
Curated ICD-10 code lists, CPT cheat sheets and billing rules by specialty.
Explore complete specialty guidelines, CPT crosswalks and billing rules.
Latest CMS & CDC Regulatory Updates
Annual ICD-10 code revisions, quarterly HCPCS releases, and fee schedule rule changes.
Official CDC FY2027 clinical modification release introducing 252 new codes, 36 code revisions, and 12 code deletions effective Oc...
Quarterly National Correct Coding Initiative (NCCI) file updating Procedure-to-Procedure (PTP) edits, modifier indicators, and Med...
Final rule establishing the standard Medicare conversion factor of $32.74, G2211 complexity add-on utilization policies, and teleh...
Editorial Accuracy: All data ingested directly from CDC NCHS FY2027 ICD-10-CM tabular files and CMS Medicare Physician Fee Schedule. Last verified September 29, 2026. Read Editorial Policy →