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 Codes Billable Only

Internal Codes

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R29.8|
Other symptoms and signs involving the nervous and musculoskeletal systems
R29.81|
Other symptoms and signs involving the nervous system
R29.810|
Facial weakness
R29.818|
Other symptoms and signs involving the nervous system
R29.89|
Other symptoms and signs involving the musculoskeletal system
R29.890|
Loss of height
R29.891|
Ocular torticollis
R29.898|
Other symptoms and signs involving the musculoskeletal system
R29.9|
Unspecified symptoms and signs involving the nervous and musculoskeletal systems
R29.90|
Unspecified symptoms and signs involving the nervous system
R29.91|
Unspecified symptoms and signs involving the musculoskeletal system
R30|
Pain associated with micturition
R30.0|
Dysuria
R30.1|
Vesical tenesmus
R30.9|
Painful micturition, unspecified
R31|
Hematuria
R31.0|
Gross hematuria
R31.1|
Benign essential microscopic hematuria
R31.2|
Other microscopic hematuria
R31.21|
Asymptomatic microscopic hematuria
R31.29|
Other microscopic hematuria
R31.9|
Hematuria, unspecified
R32|
Unspecified urinary incontinence
R33|
Retention of urine
R33.0|
Drug induced retention of urine
R33.8|
Other retention of urine
R33.9|
Retention of urine, unspecified
R34|
Anuria and oliguria
R35|
Polyuria
R35.0|
Frequency of micturition
R35.1|
Nocturia
R35.8|
Other polyuria
R35.81|
Nocturnal polyuria
R35.89|
Other polyuria
R36|
Urethral discharge
R36.0|
Urethral discharge without blood
R36.1|
Hematospermia
R36.9|
Urethral discharge, unspecified
R37|
Sexual dysfunction, unspecified
R39|
Other and unspecified symptoms and signs involving the genitourinary system
R39.0|
Extravasation of urine
R39.1|
Other difficulties with micturition
R39.11|
Hesitancy of micturition
R39.12|
Poor urinary stream
R39.13|
Splitting of urinary stream
R39.14|
Feeling of incomplete bladder emptying
R39.15|
Urgency of urination
R39.16|
Straining to void
R39.19|
Other difficulties with micturition
R39.191|
Need to immediately re-void

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