All ICD10 Codes
Chapter 18

R00–R99: Symptoms, Signs and Abnormal Clinical and Laboratory Findings

Symptoms, Signs and Abnormal Clinical and Laboratory Findings diagnostic classification updated for 2026.

Chapter Instructions

Excludes2(Not included here. Code separately if applicable.)
  • abnormal findings on antenatal screening of mother (O28.-)
  • certain conditions originating in the perinatal period (P04-P96)
  • signs and symptoms classified in the body system chapters
  • signs and symptoms of breast (N63, N64.5)
All CodesBillable Only
Internal Codes
PrevNext
  • R15|

    Fecal incontinence

  • R15.0|

    Incomplete defecation

  • R15.1|

    Fecal smearing

  • R15.2|

    Fecal urgency

  • R15.9|

    Full incontinence of feces

  • R16|

    Hepatomegaly and splenomegaly, not elsewhere classified

  • R16.0|

    Hepatomegaly, not elsewhere classified

  • R16.1|

    Splenomegaly, not elsewhere classified

  • R16.2|

    Hepatomegaly with splenomegaly, not elsewhere classified

  • R17|

    Unspecified jaundice

  • R18|

    Ascites

  • R18.0|

    Malignant ascites

  • R18.8|

    Other ascites

  • R19|

    Other symptoms and signs involving the digestive system and abdomen

  • R19.0|

    Intra-abdominal and pelvic swelling, mass and lump

  • R19.00|

    Intra-abdominal and pelvic swelling, mass and lump, unspecified site

  • R19.01|

    Right upper quadrant abdominal swelling, mass and lump

  • R19.02|

    Left upper quadrant abdominal swelling, mass and lump

  • R19.03|

    Right lower quadrant abdominal swelling, mass and lump

  • R19.04|

    Left lower quadrant abdominal swelling, mass and lump

  • R19.05|

    Periumbilic swelling, mass or lump

  • R19.06|

    Epigastric swelling, mass or lump

  • R19.07|

    Generalized intra-abdominal and pelvic swelling, mass and lump

  • R19.09|

    Other intra-abdominal and pelvic swelling, mass and lump

  • R19.1|

    Abnormal bowel sounds

  • R19.11|

    Absent bowel sounds

  • R19.12|

    Hyperactive bowel sounds

  • R19.15|

    Other abnormal bowel sounds

  • R19.2|

    Visible peristalsis

  • R19.3|

    Abdominal rigidity

  • R19.30|

    Abdominal rigidity, unspecified site

  • R19.31|

    Right upper quadrant abdominal rigidity

  • R19.32|

    Left upper quadrant abdominal rigidity

  • R19.33|

    Right lower quadrant abdominal rigidity

  • R19.34|

    Left lower quadrant abdominal rigidity

  • R19.35|

    Periumbilic abdominal rigidity

  • R19.36|

    Epigastric abdominal rigidity

  • R19.37|

    Generalized abdominal rigidity

  • R19.4|

    Change in bowel habit

  • R19.5|

    Other fecal abnormalities

  • R19.6|

    Halitosis

  • R19.7|

    Diarrhea, unspecified

  • R19.8|

    Other specified symptoms and signs involving the digestive system and abdomen

  • R20|

    Disturbances of skin sensation

  • R20.0|

    Anesthesia of skin

  • R20.1|

    Hypoesthesia of skin

  • R20.2|

    Paresthesia of skin

  • R20.3|

    Hyperesthesia

  • R20.8|

    Other disturbances of skin sensation

  • R20.9|

    Unspecified disturbances of skin sensation

PreviousPage 4 of 20Next