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Common ICD-10 Codes for Primary Care

Below is a list of common ICD-10 codes for Primary Care. This list of codes offers a great way to become more familiar with your most-used codes, but it's not meant to be comprehensive. If you'd like to build and manage your own custom lists, check out the Code Search!

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Chapter 3 - Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89)
- + Section D60-D64 -
  Aplastic and other anemias and other bone marrow failure syndromes (D60-D64)
Chapter 4 - Endocrine, nutritional and metabolic diseases (E00-E89)
- + Section E00-E07 -
  Disorders of thyroid gland (E00-E07)
- + Section E70-E88 -
  Metabolic disorders (E70-E88)
- + Section E08-E13 -
  Diabetes mellitus (E08-E13)
  - 10
    
    E11.9
    
    Type 2 diabetes mellitus without complications
Chapter 5 - Mental, Behavioral and Neurodevelopmental disorders (F01-F99)
- + Section F40-F48 -
  Anxiety, dissociative, stress-related, somatoform and other nonpsychotic mental disorders (F40-F48)
- + Section F30-F39 -
  Mood [affective] disorders (F30-F39)
Chapter 6 - Diseases of the nervous system (G00-G99)
- + Section G89-G99 -
  Other disorders of the nervous system (G89-G99)
  - 10
    
    G89.4
    
    Chronic pain syndrome
  - 10
    
    G93.3
    
    Postviral fatigue syndrome
Chapter 8 - Diseases of the ear and mastoid process (H60-H95)
- + Section H60-H62 -
  Diseases of external ear (H60-H62)
Chapter 9 - Diseases of the circulatory system (I00-I99)
- + Section I30-I52 -
  Other forms of heart disease (I30-I52)
- + Section I10-I15 -
  Hypertensive diseases (I10-I15)
  - 10
    
    I10
    
    Essential (primary) hypertension
Chapter 10 - Diseases of the respiratory system (J00-J99)
Chapter 11 - Diseases of the digestive system (K00-K95)
- + Section K55-K64 -
  Other diseases of intestines (K55-K64)
  - 10
    
    K64.4
    
    Residual hemorrhoidal skin tags
  - 10
    
    K64.5
    
    Perianal venous thrombosis
- + Section K20-K31 -
  Diseases of esophagus, stomach and duodenum (K20-K31)
  - 10
    
    K21.0
    
    Gastro-esophageal reflux disease with esophagitis
  - 10
    
    K21.9
    
    Gastro-esophageal reflux disease without esophagitis
Chapter 12 - Diseases of the skin and subcutaneous tissue (L00-L99)
- + Section L20-L30 -
  Dermatitis and eczema (L20-L30)
- + Section L00-L08 -
  Infections of the skin and subcutaneous tissue (L00-L08)
Chapter 13 - Diseases of the musculoskeletal system and connective tissue (M00-M99)
Chapter 14 - Diseases of the genitourinary system (N00-N99)
- + Section N10-N16 -
  Renal tubulo-interstitial diseases (N10-N16)
  - 10
    
    N15.9
    
    Renal tubulo-interstitial disease, unspecified
- + Section N30-N39 -
  Other diseases of the urinary system (N30-N39)
Chapter 18 - Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
- + Section R50-R69 -
  General symptoms and signs (R50-R69)
- + Section R40-R46 -
  Symptoms and signs involving cognition, perception, emotional state and behavior (R40-R46)
  - 10
    
    R42
    
    Dizziness and giddiness
- + Section R20-R23 -
  Symptoms and signs involving the skin and subcutaneous tissue (R20-R23)
  - 10
    
    R21
    
    Rash and other nonspecific skin eruption
- + Section R10-R19 -
  Symptoms and signs involving the digestive system and abdomen (R10-R19)
- + Section R00-R09 -
  Symptoms and signs involving the circulatory and respiratory systems (R00-R09)
- + Section R30-R39 -
  Symptoms and signs involving the genitourinary system (R30-R39)
  - 10
    
    R30.0
    
    Dysuria
Chapter 21 - Factors influencing health status and contact with health services (Z00-Z99)
- + Section Z77-Z99 -
  Persons with potential health hazards related to family and personal history and certain conditions influencing health status (Z77-Z99)
  - 10
    
    Z77.22
    
    Contact with and (suspected) exposure to environmental tobacco smoke (acute) (chronic)
  - 10
    
    Z87.891
    
    Personal history of nicotine dependence
- + Section Z20-Z28 -
  Persons with potential health hazards related to communicable diseases (Z20-Z28)
  - 10
    
    Z23
    
    Encounter for immunization
- + Section Z69-Z76 -
  Persons encountering health services in other circumstances (Z69-Z76)
  - 10
    
    Z72.0
    
    Tobacco use
- + Section Z00-Z13 -
  Persons encountering health services for examinations (Z00-Z13)
- + Section Z55-Z65 -
  Persons with potential health hazards related to socioeconomic and psychosocial circumstances (Z55-Z65)
  - 10
    
    Z57.31
    
    Occupational exposure to environmental tobacco smoke

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