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ICD-10-CM diagnosis codes

ICD-10-CM codes describe diagnoses: what's wrong with the patient, or why they were seen. Every code here is billable and comes from the current CMS code set.

1964 codes. Source: ICD-10-CM FY2027 (effective October 1, 2026).

B34 Viral infection of unspecified site

B35 Dermatophytosis

B37 Candidiasis

D50 Iron deficiency anemia

D51 Vitamin B12 deficiency anemia

D64 Other anemias

E03 Other hypothyroidism

E10 Type 1 diabetes mellitus

E11 Type 2 diabetes mellitus

E53 Deficiency of other B group vitamins

E55 Vitamin D deficiency

E66 Overweight and obesity

E78 Disorders of lipoprotein metabolism and other lipidemias

E86 Volume depletion

E87 Other disorders of fluid, electrolyte and acid-base balance

F10 Alcohol related disorders

F11 Opioid related disorders

F17 Nicotine dependence

F31 Bipolar disorder

F32 Depressive episode

F33 Major depressive disorder, recurrent

F34 Persistent mood [affective] disorders

F39 Unspecified mood [affective] disorder

F40 Phobic anxiety disorders

F41 Other anxiety disorders

F42 Obsessive-compulsive disorder

F43 Reaction to severe stress, and adjustment disorders

F51 Sleep disorders not due to a substance or known physiological condition

F84 Pervasive developmental disorders

F90 Attention-deficit hyperactivity disorders

F99 Mental disorder, not otherwise specified

G43 Migraine

G44 Other headache syndromes

G47 Sleep disorders

G56 Mononeuropathies of upper limb

G62 Other and unspecified polyneuropathies

G89 Pain, not elsewhere classified

H10 Conjunctivitis

H52 Disorders of refraction and accommodation

H66 Suppurative and unspecified otitis media

I10 Essential (primary) hypertension

I11 Hypertensive heart disease

I25 Chronic ischemic heart disease

I48 Atrial fibrillation and flutter

I50 Heart failure

I73 Other peripheral vascular diseases

J01 Acute sinusitis

J02 Acute pharyngitis

J03 Acute tonsillitis

J06 Acute upper respiratory infections of multiple and unspecified sites

J18 Pneumonia, unspecified organism

J20 Acute bronchitis

J30 Vasomotor and allergic rhinitis

J32 Chronic sinusitis

J44 Other chronic obstructive pulmonary disease

J45 Asthma

K21 Gastro-esophageal reflux disease

K29 Gastritis and duodenitis

K57 Diverticular disease of intestine

K58 Irritable bowel syndrome

K59 Other functional intestinal disorders

L03 Cellulitis and acute lymphangitis

L30 Other and unspecified dermatitis

M17 Osteoarthritis of knee

M19 Other and unspecified osteoarthritis

M51 Thoracic, thoracolumbar, and lumbosacral intervertebral disc disorders

M54 Dorsalgia

M79 Other and unspecified soft tissue disorders, not elsewhere classified

N18 Chronic kidney disease (CKD)

N39 Other disorders of urinary system

N40 Benign prostatic hyperplasia

R03 Abnormal blood-pressure reading, without diagnosis

R05 Cough

R06 Abnormalities of breathing

R07 Pain in throat and chest

R10 Abdominal and pelvic pain

R11 Nausea and vomiting

R19 Other symptoms and signs involving the digestive system and abdomen

R21 Rash and other nonspecific skin eruption

R39 Other and unspecified symptoms and signs involving the genitourinary system

R42 Dizziness and giddiness

R50 Fever of other and unknown origin

R51 Headache

R53 Malaise and fatigue

R60 Edema, not elsewhere classified

R73 Elevated blood glucose level

R79 Other abnormal findings of blood chemistry

R94 Abnormal results of function studies

Z00 Encounter for general examination without complaint, suspected or reported diagnosis

Z01 Encounter for other special examination without complaint, suspected or reported diagnosis

Z02 Encounter for administrative examination

Z09 Encounter for follow-up examination after completed treatment for conditions other than malignant neoplasm

Z11 Encounter for screening for infectious and parasitic diseases

Z12 Encounter for screening for malignant neoplasms

Z13 Encounter for screening for other diseases and disorders

Z20 Contact with and (suspected) exposure to communicable diseases

Z23 Encounter for immunization

Z30 Encounter for contraceptive management

Z34 Encounter for supervision of normal pregnancy

Z3A Weeks of gestation

Z39 Encounter for maternal postpartum care and examination

Z51 Encounter for other aftercare and medical care

Z68 Body mass index [BMI]

Z71 Persons encountering health services for other counseling and medical advice, not elsewhere classified

Z72 Problems related to lifestyle

Z79 Long term (current) drug therapy

Z86 Personal history of certain other diseases

Z87 Personal history of other diseases and conditions

U07 Emergency use of U07

Educational reference only. Not medical, legal, or billing advice. Always check the current official code set and payer policy before you bill. About BillingBrief and our sources.