| Header | Description |
| R00* | Abnormalities of heart beat |
| R01* | Cardiac murmurs and other cardiac sounds |
| R03* | Abnormal blood-pressure reading, without diagnosis |
| R04* | Hemorrhage from respiratory passages |
| R04.8* | Hemorrhage from other sites in respiratory passages |
| R06* | Abnormalities of breathing |
| R06.0* | Dyspnea |
| R06.8* | Other abnormalities of breathing |
| R07* | Pain in throat and chest |
| R07.8* | Other chest pain |
| R09* | Other symptoms and signs involving the circulatory and respiratory system |
| R09.0* | Asphyxia and hypoxemia |
| R09.8* | Other specified symptoms and signs involving the circulatory and respiratory systems |
| R10* | Abdominal and pelvic pain |
| R10.1* | Pain localized to upper abdomen |
| R10.3* | Pain localized to other parts of lower abdomen |
| R10.8* | Other abdominal pain |
| R10.81* | Abdominal tenderness |
| R10.82* | Rebound abdominal tenderness |
| R11* | Nausea and vomiting |
| R11.1* | Vomiting |
| R13* | Aphagia and dysphagia |
| R13.1* | Dysphagia |
| R14* | Flatulence and related conditions |
| R15* | Fecal incontinence |
| R16* | Hepatomegaly and splenomegaly, not elsewhere classified |
| R18* | Ascites |
| R19* | Other symptoms and signs involving the digestive system and abdomen |
| R19.0* | Intra-abdominal and pelvic swelling, mass and lump |
| R19.1* | Abnormal bowel sounds |
| R19.3* | Abdominal rigidity |
| R20* | Disturbances of skin sensation |
| R22* | Localized swelling, mass and lump of skin and subcutaneous tissue |
| R22.3* | Localized swelling, mass and lump, upper limb |
| R22.4* | Localized swelling, mass and lump, lower limb |
| R23* | Other skin changes |
| R25* | Abnormal involuntary movements |
| R26* | Abnormalities of gait and mobility |
| R26.8* | Other abnormalities of gait and mobility |
| R27* | Other lack of coordination |
| R29* | Other symptoms and signs involving the nervous and musculoskeletal systems |
| R29.7* | National Institutes of Health Stroke Scale (NIHSS) score |
| R29.70* | NIHSS score 0-9 |
| R29.71* | NIHSS score 10-19 |
| R29.72* | NIHSS score 20-29 |
| R29.73* | NIHSS score 30-39 |
| R29.74* | NIHSS score 40-42 |
| R29.8* | Other symptoms and signs involving the nervous and musculoskeletal systems |
| R29.81* | Other symptoms and signs involving the nervous system |
| R29.89* | Other symptoms and signs involving the musculoskeletal system |
| R29.9* | Unspecified symptoms and signs involving the nervous and musculoskeletal systems |
| R30* | Pain associated with micturition |
| R31* | Hematuria |
| R31.2* | Other microscopic hematuria |
| R33* | Retention of urine |
| R35* | Polyuria |
| R36* | Urethral discharge |
| R39* | Other and unspecified symptoms and signs involving the genitourinary system |
| R39.1* | Other difficulties with micturition |
| R39.19* | Other difficulties with micturition |
| R39.8* | Other symptoms and signs involving the genitourinary system |
| R40* | Somnolence, stupor and coma |
| R40.2* | Coma |
| R40.21* | Coma scale, eyes open |
| R40.211* | Coma scale, eyes open, never |
| R40.212* | Coma scale, eyes open, to pain |
| R40.213* | Coma scale, eyes open, to sound |
| R40.214* | Coma scale, eyes open, spontaneous |
| R40.22* | Coma scale, best verbal response |
| R40.221* | Coma scale, best verbal response, none |
| R40.222* | Coma scale, best verbal response, incomprehensible words |
| R40.223* | Coma scale, best verbal response, inappropriate words |
| R40.224* | Coma scale, best verbal response, confused conversation |
| R40.225* | Coma scale, best verbal response, oriented |
| R40.23* | Coma scale, best motor response |
| R40.231* | Coma scale, best motor response, none |
| R40.232* | Coma scale, best motor response, extension |
| R40.233* | Coma scale, best motor response, abnormal flexion |
| R40.234* | Coma scale, best motor response, flexion withdrawal |
| R40.235* | Coma scale, best motor response, localizes pain |
| R40.236* | Coma scale, best motor response, obeys commands |
| R40.24* | Glasgow coma scale, total score |
| R40.241* | Glasgow coma scale score 13-15 |
| R40.242* | Glasgow coma scale score 9-12 |
| R40.243* | Glasgow coma scale score 3-8 |
| R40.244* | Other coma, without documented Glasgow coma scale score, or with partial score reported |
| R41* | Other symptoms and signs involving cognitive functions and awareness |
| R41.8* | Other symptoms and signs involving cognitive functions and awareness |
| R41.84* | Other specified cognitive deficit |
| R43* | Disturbances of smell and taste |
| R44* | Other symptoms and signs involving general sensations and perceptions |
| R45* | Symptoms and signs involving emotional state |
| R45.8* | Other symptoms and signs involving emotional state |
| R45.85* | Homicidal and suicidal ideations |
| R46* | Symptoms and signs involving appearance and behavior |
| R46.8* | Other symptoms and signs involving appearance and behavior |
| R47* | Speech disturbances, not elsewhere classified |
| R47.0* | Dysphasia and aphasia |
| R47.8* | Other speech disturbances |
| R48* | Dyslexia and other symbolic dysfunctions, not elsewhere classified |
| R49* | Voice and resonance disorders |
| R49.2* | Hypernasality and hyponasality |
| R50* | Fever of other and unknown origin |
| R50.8* | Other specified fever |
| R53* | Malaise and fatigue |
| R53.8* | Other malaise and fatigue |
| R56* | Convulsions, not elsewhere classified |
| R56.0* | Febrile convulsions |
| R57* | Shock, not elsewhere classified |
| R59* | Enlarged lymph nodes |
| R60* | Edema, not elsewhere classified |
| R62* | Lack of expected normal physiological development in childhood and adults |
| R62.5* | Other and unspecified lack of expected normal physiological development in childhood |
| R63* | Symptoms and signs concerning food and fluid intake |
| R65* | Symptoms and signs specifically associated with systemic inflammation and infection |
| R65.1* | Systemic inflammatory response syndrome (SIRS) of non-infectious origin |
| R65.2* | Severe sepsis |
| R68* | Other general symptoms and signs |
| R68.1* | Nonspecific symptoms peculiar to infancy |
| R68.8* | Other general symptoms and signs |
| R70* | Elevated erythrocyte sedimentation rate and abnormality of plasma viscosity |
| R71* | Abnormality of red blood cells |
| R73* | Elevated blood glucose level |
| R73.0* | Abnormal glucose |
| R74* | Abnormal serum enzyme levels |
| R76* | Other abnormal immunological findings in serum |
| R76.1* | Nonspecific reaction to test for tuberculosis |
| R77* | Other abnormalities of plasma proteins |
| R78* | Findings of drugs and other substances, not normally found in blood |
| R78.7* | Finding of abnormal level of heavy metals in blood |
| R78.8* | Finding of other specified substances, not normally found in blood |
| R79* | Other abnormal findings of blood chemistry |
| R79.8* | Other specified abnormal findings of blood chemistry |
| R80* | Proteinuria |
| R82* | Other and unspecified abnormal findings in urine |
| R82.7* | Abnormal findings on microbiological examination of urine |
| R82.9* | Other and unspecified abnormal findings in urine |
| R82.99* | Other abnormal findings in urine |
| R83* | Abnormal findings in cerebrospinal fluid |
| R84* | Abnormal findings in specimens from respiratory organs and thorax |
| R85* | Abnormal findings in specimens from digestive organs and abdominal cavity |
| R85.6* | Abnormal cytological findings in specimens from digestive organs and abdominal cavity |
| R85.61* | Abnormal cytologic smear of anus |
| R85.8* | Other abnormal findings in specimens from digestive organs and abdominal cavity |
| R86* | Abnormal findings in specimens from male genital organs |
| R87* | Abnormal findings in specimens from female genital organs |
| R87.6* | Abnormal cytological findings in specimens from female genital organs |
| R87.61* | Abnormal cytological findings in specimens from cervix uteri |
| R87.62* | Abnormal cytological findings in specimens from vagina |
| R87.8* | Other abnormal findings in specimens from female genital organs |
| R87.81* | High risk human papillomavirus (HPV) DNA test positive from female genital organs |
| R87.82* | Low risk human papillomavirus (HPV) DNA test positive from female genital organs |
| R88* | Abnormal findings in other body fluids and substances |
| R89* | Abnormal findings in specimens from other organs, systems and tissues |
| R90* | Abnormal findings on diagnostic imaging of central nervous system |
| R90.8* | Other abnormal findings on diagnostic imaging of central nervous system |
| R91* | Abnormal findings on diagnostic imaging of lung |
| R92* | Abnormal and inconclusive findings on diagnostic imaging of breast |
| R93* | Abnormal findings on diagnostic imaging of other body structures |
| R93.4* | Abnormal findings on diagnostic imaging of urinary organs |
| R93.42* | Abnormal radiologic findings on diagnostic imaging of kidney |
| R93.8* | Abnormal findings on diagnostic imaging of other specified body structures |
| R93.81* | Abnormal radiologic findings on diagnostic imaging of testis |
| R94* | Abnormal results of function studies |
| R94.0* | Abnormal results of function studies of central nervous system |
| R94.1* | Abnormal results of function studies of peripheral nervous system and special senses |
| R94.11* | Abnormal results of function studies of eye |
| R94.12* | Abnormal results of function studies of ear and other special senses |
| R94.13* | Abnormal results of function studies of peripheral nervous system |
| R94.3* | Abnormal results of cardiovascular function studies |
| R97* | Abnormal tumor markers |
| R97.2* | Elevated prostate specific antigen [PSA] |
