ICD-10 Lookup - Find Medical Diagnosis Codes

Search diagnosis codes by name, descriptions, clinical terms or synonyms.

Filter By: Billable Only Grouped in DRG POA Exempt

ICD-10-CM Search - Fast, Free, and Current

Designed for healthcare professionals and patients, our tool provides quick access to the current list of American ICD-10-CM diagnosis codes. Search features include:

Detailed Code Exploration: Search by code name, descriptions, and clinical terms.
Specialized Filters: Narrow down results to billable codes, codes included in DRG Groups, or POA Exempt status.
Synonym Matching: Find codes using approximate synonyms for more intuitive searches.
Submission-Ready Codes: Easily identify codes valid for submission.

Browse ICD-10-CM Codes

Code Range

ICD-10-CM Section

A00–B99

Certain infectious and parasitic diseases (1,309 codes)

C00–D48

Neoplasms (2,160 codes)

D50–D89

Diseases of the blood involving the immune mechanism (419 codes)

E00–E89

Endocrine, nutritional and metabolic diseases (1,267 codes)

F01–F99

Mental and behavioural disorders (1,112 codes)

G00–G99

Diseases of the nervous system (932 codes)

H00–H59

Diseases of the eye and adnexa (3,466 codes)

H60–H95

Diseases of the ear and mastoid process (871 codes)

I00–I99

Diseases of the circulatory system (1,798 codes)

J00–J99

Diseases of the respiratory system (471 codes)

K00–K95

Diseases of the digestive system (1,109 codes)

L00–L99

Diseases of the skin and subcutaneous tissue (1,206 codes)

M00–M99

Diseases of the musculoskeletal system and connective tissue (8,674 codes)

N00–N99

Diseases of the genitourinary system (1,044 codes)

O00-O9A

Pregnancy, childbirth and the puerperium (3,023 codes)

P00–P96

Certain conditions originating in the perinatal period (565 codes)

Q00-Q99

Congenital malformations, deformations and chromosomal abnormalities (1,086 codes)

R00–R99

Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (962 codes)

S00–T98

Injury, poisoning and certain other consequences of external causes (54,261 codes)

V01–Y99

External causes of morbidity and mortality (10,602 codes)

Z00–Z99

Factors influencing health status and contact with health services (1,844 codes)

U00–U85

Codes for Special Purposes (5 codes)

Understanding ICD-10-CM

The ICD-10-CM (International Classification of Diseases, Tenth Revision, Clinical Modification) is an essential tool for medical coding in the U.S., maintained by CMS. The 2026 edition covers patient encounters and discharges from October 1st, 2025, to September 30th, 2026. It comprises codes of varying lengths, providing precise and specific diagnostic details. For instance, codes in chapters M, O, R, S, T, V, W, X, Y necessitate a seventh character, often achieved using a placeholder 'x' for codes with fewer than six characters.

Our tool simplifies this complexity, ensuring you find the most accurate and detailed codes for your medical documentation needs.