ICD-Code Glossary

Top ICD-10-CM Diagnosis Codes for Independent Medical Practices

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A00–B99: Infectious and Parasitic Diseases

  • A41.9 – Sepsis, unspecified
  • B18.3 – Chronic viral hepatitis C
  • B20 – HIV disease
  • B35.1 – Tinea unguium

C00–D49: Neoplasms

  • C20 – Malignant neoplasm of rectum
  • C50.911 – Malignant neoplasm of right female breast, unspecified site
  • C50.912 – Malignant neoplasm of left female breast, unspecified site
  • C50.919 – Malignant neoplasm of unspecified female breast
  • C61 – Malignant neoplasm of prostate

D50–D89: Blood and Immune Disorders

  • D50.9 – Iron deficiency anemia, unspecified
  • D61.818 – Other aplastic anemias
  • D64.9 – Anemia, unspecified
  • D68.32 – Immune thrombocytopenic purpura
  • D69.6 – Thrombocytopenia, unspecified

E00–E89: Endocrine, Nutritional, and Metabolic Diseases

  • E03.9 – Hypothyroidism, unspecified
  • E11.65 – Type 2 diabetes with hyperglycemia
  • E11.69 – Type 2 diabetes with other complications
  • E11.9 – Type 2 diabetes without complications
  • E29.1 – Testicular hypofunction
  • E43 – Unspecified severe protein-calorie malnutrition
  • E46 – Unspecified protein-calorie malnutrition
  • E55.9 – Vitamin D deficiency, unspecified
  • E66.01 – Morbid obesity due to excess calories
  • E66.09 – Obesity due to excess calories, other
  • E66.3 – Overweight
  • E66.813 – Body mass index 30–30.9, adult
  • E66.9 – Obesity, unspecified
  • E78.00 – Pure hypercholesterolemia, unspecified
  • E78.2 – Mixed hyperlipidemia
  • E78.5 – Hyperlipidemia, unspecified

F00–F99: Mental, Behavioral, and Neurodevelopmental Disorders

  • F03.90 – Unspecified dementia without behavioral disturbance
  • F20.9 – Schizophrenia, unspecified
  • F31.9 – Bipolar disorder, unspecified
  • F32.9 – Major depressive disorder, single episode, unspecified
  • F32.A – Depression, unspecified
  • F33.0 – Major depressive disorder, recurrent, mild
  • F33.1 – Major depressive disorder, recurrent, moderate
  • F33.2 – Major depressive disorder, recurrent, severe without psychotic features
  • F33.9 – Major depressive disorder, recurrent, unspecified
  • F41.0 – Panic disorder
  • F41.9 – Anxiety disorder, unspecified
  • F43.10 – Post-traumatic stress disorder, unspecified
  • F43.12 – Adjustment disorder with mixed anxiety and depressed mood
  • F45.42 – Pain disorder
  • F90.0 – Attention deficit hyperactivity disorder, predominantly inattentive type
  • F90.2 – Attention deficit hyperactivity disorder, combined type
  • F90.9 – Attention deficit hyperactivity disorder, unspecified
  • f41.1 – generalized anxiety disorder

G00–G99: Diseases of the Nervous System

  • G47.00 – Insomnia, unspecified
  • G47.33 – Obstructive sleep apnea (adult)
  • G62.9 – Polyneuropathy, unspecified
  • G89.4 – Chronic pain syndrome

I00–I99: Circulatory System Diseases

  • I10 – Essential (primary) hypertension

  • I25.10 – Atherosclerotic heart disease

  • I25.2 – Old myocardial infarction

  • I48.19 – Atrial fibrillation, unspecified

  • I48.20 – Chronic atrial fibrillation, unspecified

  • I48.91 – Unspecified atrial fibrillation

  • I50.9 – Heart failure, unspecified

  • I73.9 – Peripheral vascular disease, unspecified


J00–J99: Respiratory System Diseases

  • J01.00 – Acute maxillary sinusitis

  • J01.90 – Acute sinusitis, unspecified

  • J02.0 – Streptococcal pharyngitis

  • J02.9 – Acute pharyngitis, unspecified

  • J06.9 – Acute upper respiratory infection, unspecified

  • J20.9 – Acute bronchitis, unspecified

  • J30.2 – Other seasonal allergic rhinitis

  • J30.89 – Other allergic rhinitis

  • J30.9 – Allergic rhinitis, unspecified

  • J44.9 – Chronic obstructive pulmonary disease, unspecified

  • J45.909 – Unspecified asthma, uncomplicated


K00–K95: Digestive System Diseases

  • K21.9 – Gastro-esophageal reflux disease without esophagitis

  • K59.00 – Constipation, unspecified

  • K64.9 – Hemorrhoids, unspecified

  • K70.30 – Alcoholic cirrhosis of liver without ascites

  • K74.69 – Other and unspecified cirrhosis of liver


L00–L99: Skin and Subcutaneous Tissue Diseases

  • L60.0 – Ingrown nail


M00–M99: Musculoskeletal System and Connective Tissue

  • M06.9 – Rheumatoid arthritis, unspecified
  • M25.511 – Pain in right shoulder
  • M25.512 – Pain in left shoulder
  • M25.561 – Pain in right knee
  • M25.562 – Pain in left knee
  • M54.12 – Cervicalgia
  • M54.16 – Radiculopathy, cervical region
  • M54.2 – Cervicalgia
  • M54.50 – Low back pain, unspecified
  • M54.6 – Pain in thoracic spine
  • M62.81 – Muscle weakness, unspecified
  • M62.830 – Muscle spasm of back
  • M72.2 – Plantar fascial fibromatosis
  • M79.671 – Pain in right foot
  • M79.672 – Pain in left foot
  • M79.674 – Pain in unspecified foot
  • M79.675 – Pain in foot, unspecified
  • M81.0 – Age-related osteoporosis without current pathological fracture
  • M99.01 – Segmental and somatic dysfunction of cervical region

N00–N99: Genitourinary System Diseases

  • N13.6 – Hydronephrosis with renal and ureteral calculous obstruction

  • N18.6 – End-stage renal disease

  • N18.9 – Chronic kidney disease, unspecified

  • N39.0 – Urinary tract infection, site not specified

  • N40.1 – Enlarged prostate with lower urinary tract symptoms

  • N94.89 – Other specified conditions associated with female genital organs and menstrual cycle


P00–P96: Perinatal Conditions

  • P07.30 – Preterm newborn, gestational age 28–31 weeks


R00–R99: Symptoms, Signs, and Abnormal Findings

  • R00.0 – Tachycardia, unspecified
  • R00.2 – Palpitations
  • R03.0 – Elevated blood-pressure reading, without diagnosis
  • R05.1 – Acute cough
  • R05.9 – Cough, unspecified
  • R06.00 – Dyspnea, unspecified
  • R06.02 – Shortness of breath
  • R06.09 – Other forms of dyspnea
  • R06.2 – Wheezing
  • R07.0 – Pain in throat
  • R07.9 – Chest pain, unspecified
  • R09.81 – Nasal congestion
  • R10.2 – Pelvic and perineal pain
  • R10.84 – Generalized abdominal pain
  • R10.9 – Abdominal pain, unspecified
  • R11.0 – Nausea
  • R11.2 – Nausea with vomiting
  • R04.0 – nosebleed (epistaxis)

U00–U85: Codes for Special Purposes

  • U07.1 – COVID-19


Z00–Z99: Factors Influencing Health Status

  • Z00.00 – General adult medical examination

  • Z00.01 – General pediatric medical examination

  • Z01.89 – Encounter for other specified examinations

  • Z11.52 – Screening for HIV

  • Z12.11 – Screening for malignant neoplasm of colon

  • Z12.5 – Screening for malignant neoplasm of other sites

  • Z13.1 – Screening for diabetes mellitus

  • Z13.220 – Screening for cardiovascular disorders

  • Z13.31 – Screening for mental health

  • Z13.89 – Screening for other conditions

  • Z20.822 – Contact with and exposure to COVID-19

  • Z20.828 – Contact with and exposure to other viral communicable diseases

  • Z23 – Encounter for immunization

  • Z51.81 – Encounter for therapeutic drug monitoring

  • Z71.2 – Patient education on mental health

  • Z71.3 – Dietary counseling

  • Z79.01 – Long-term use of anticoagulants

  • Z79.4 – Long-term use of insulin

  • Z79.891 – Long-term use of opiate analgesic

  • Z79.899 – Other long-term drug therapy