Common Co-Morbid Disorder ICD9 Codes
The following is a list of commonly used ICD9 (diagnosis codes) for the co-morbid disorders ASD children may have. There is also a list of commonly used tests with their ICD9 codes.
| ICD9 code | ICD9 wording |
| 034.0 | Streptococcal sore throat |
| 054.9 | Herpes simplex without mention of complication |
| 088.81 | Lyme disease |
| 112.5 | Systemic candidiasis |
| 112.82 | Candidal otitis externa |
| 112.85 | Candidal enteritis |
| 112.9 | Of unspecified site |
| 136.9 | Unspecified infectious and parasitic diseases |
| 244.9 | Unspecified hypothyroidism |
| 255.0 | Cushing’s syndrome |
| 255.4 | Corticoadrenal insufficiency |
| 255.8 | Other specified disorders of adrenal glands |
| 259.1 | Precocious sexual development and puberty, not elsewhere classified |
| 263.0 | malnutrition of moderate degree |
| 266.2 | Other B-complex deficiencies Deficiency: cyanocobalamin, folic acid, vitamin B12 |
| 269.2 | Unspecified vitamin deficiency Multiple vitamin deficiency NOS |
| 269.3 | Mineral deficiency, not elsewhere classified Deficiency: calcium, dietary |
| 269.8 | Other nutritional deficiency Excludes: failure to thrive in childhood (783.41) feeding problems (783.3) |
| 269.9 | Unspecified nutritional deficiency |
| 270.0 | Disturbances of amino-acid transport |
| 270.4 | Disturbances of sulphur-bearing amino-acid metabolism |
| 270.6 | Disorders of urea cycle metabolism |
| 271.0-271.9 | carbohydrate transport and metabolism |
| 271.8 | Other specified disorders of carbohydrate transport and metabolism |
| 272.0 – 272.9 | Lipid metabolism |
| 272.5 | Lipoprotein deficiencies |
| 275.0 | Disorders of iron metabolism |
| 275.1 | Disorders of copper metabolism |
| 275.8 | Other specified disorders of mineral metabolism |
| 277.9 | Unspecified disorder of metabolism |
| 279.1 | Deficiency of cell-mediated immunity |
| 279.3 | Unspecified immunity deficiency |
| 279.9 | Unspecified disorder of immune mechanism |
| 281.4 | Protein-deficiency anemia Amino-acid-deficiency anemia |
| 285.9 | Anemia, unspecified |
| 314.01 | ADD with Hyperactivity |
| 348.3 | Encephalopathy, not elsewhere classified |
| 348.30 | Encephalopathy, unspecified |
| 348.39 | metabolic encephalopathy |
| 348.5 | Cerebral edema |
| 348.9 | Unspecified condition of brain |
| 349.82 | Toxic encephalopathy Toxic metabolic encephalopathy Use additional E code to identify cause |
| 462 | Acute pharyngitis: Acute sore throat NOS |
| 477.8 | Due to other allergen |
| 477.9 | Allergy, Cause unspecified |
| 535.5 | Unspecified gastritis and gastroduodenitis |
| 558.2 | Toxic gastroenteritis and colitis Use additional E code to identify cause |
| 558.3 | allergic diarrhea |
| 564.0 | Constipation |
| 564.1 | Irritable bowel syndrome |
| 569.9 | Unspecified disorder of intestine |
| 571.6 | Biliary cirrhosis |
| 579.8 | Other specified intestinal malabsorption |
| 579.9 | Unspecified intestinal malabsorption Malabsorption syndrome NOS |
| 691.8 | Other atopic dermatitis and related conditions Atopic dermatitis; Eczema: atopic, flexural, intrinsic (allergic); Neurodermatitis: atopic, diffuse |
| 693.1 | Reaction, Due to food |
| 742.0 | Encephalocele |
| 780.7 | General Muscle Weakness |
| 781.3 | Lack of coordination |
| 783.4 | Lack of expected normal physiological development |
| 784.0 | Headache |
| 790.6 | Other abnormal blood chemistry Abnormal blood levels of: cobalt, copper, iron, lead, lithium, magnesium, mineral, zinc Excludes: abnormality of electrolyte or acid-base balance (276.0-276.9); hypoglycemia NOS (251.2); lead poisoning (984.0-984.9) |
| 796.0 | Nonspecific abnormal toxicological findings Abnormal levels of heavy metals or drugs in blood, urine, or other tissue |
| 961.1 | Arsenical anti-infectives |
| 961.2 | Heavy metal anti-infectives Compounds of: antimony, bismuth, lead, mercury |
| 963.8 | Heavy metal poisoning |
| 964.0 | Iron and its compounds |
| 965.69 | Other antirheumatics Gold salts |
| 976.4 | Keratolytics |
| 979.9 | Poisoning by other unspecified vaccines and biological substances |
| 984.0 | Inorganic Lead compounds |
| 984.1 | Organic lead compounds – Lead acetate, Tetraethyl lead |
| 984.9 | Unspecified lead compound |
| 985 | Toxic effect of other metalsIncludes: that from all sources except medicinal substances |
| 985.0 | Toxic effect of other metals, mercury and its compounds |
| 985.0 | Mercury and its compounds (Minamata disease) |
| 985.1 | Arsenic and its compounds |
| 985.4 | Antimony and its compounds |
| 985.5 | Cadmium and its compounds |
| 985.8 | Other specified metals: Brass fumes, Copper salts, Iron compounds, Nickel compounds |
| 985.9 | Unspecified metal |
| 995.3 | Allergy, unspecified; Allergic reaction NOS; Hypersensitivity NOS |
The following is a list of commonly used tests with their ICD9 codes.
| Test | ICD9 code |
| Allergic Reaction | 995.3 |
| Abnormal Blood Chemistry | 790.6 |
| Allergic Rhinitis | 477.9 |
| Anemia | 285.9 |
| Amino Acids | 270.4, 348.31 |
| Ammonia | 270.6, 348.31 |
| Aldosterone | 255.8 |
| ACTH | 255.8 |
| Acyl -Carnitine | 277.87 |
| ADH | 259.1 |
| Androgens: | |
| DHEA | 259.1 |
| Testosterone Free & Total | 259.1 |
| Androstenedione | 259.1 |
| DHEA-S | 259.1 |
| Dihydrotestosterone | 259.1 |
| prognenolone | 259.1 |
| progesterone | 259.1 |
| 17-Alpha hydroxyprogesterone | 259.1 |
| 17-Alpha hydroxypregenelone | 259.1 |
| Testosterone total ONLY | 259.1 |
| Androstane Diol Glucuronide | 259.1 |
| Antistreptolysin Antibodies | |
| ASO | 348.3 |
| DAase B | 348.3 |
| Biotinidase | |
| BMP | |
| Cushing’s Syndrome | 255 |
| Co2 | 790.6 |
| Carnitine | 277.87 |
| Creatine Kinase | 277.87 |
| Cortisol | 255.8 |
| Celiac Disease Antibody profile | 579 |
| Cholesterol Total | 272.8 |
| CRP | |
| Calcium, Ionized | 790.6 |
| Ceruloplasmin | |
| C Diff Stool | |
| Copper | 790.6 |
| CBC | 790.6 |
| CMP | 790.6 |
| CMV | 78.5 |
| Cardiolipin Antibodies IgG/IgM | 289.1 |
| Cardiolip IgA | 289.1 |
| Candida/Yeast | 112.85 |
| Epstein Barr Panel | 75 |
| Essential Fatty Acid | |
| Electrolyte Panel | |
| Fractionated Metanephrine | 255.6 |
| FSH | 259.1 |
| FISH prada willi | 759.81 |
| Glucose | |
| Herpes Simplex virus IgM, IgG | 54.9 |
| Homocysteine | 348.31 |
| HPylori Stool | |
| HPylori Blood | |
| HDL Cholesterol | |
| Hematocrit | |
| Hepanic Function Panel | |
| Histimine | 995.3 |
| Hypothyroidism | 244.9 |
| HgbA1C | 250.1 |
| IRON STUDY | 285.9 |
| Ferritin | 285.9 |
| Iron/TIBC | 285.9 |
| IgG subclasses | 790.6, 348.30 |
| IgA Total | 790.6 |
| 348.3 | |
| IgA subclasses | 790.6 |
| 348.3 | |
| IgG Gluten | 790.6 |
| 348.3 | |
| IgG Total | 790.6, 348.30 |
| Lead & protoporphyrin | 984.1 |
| Lipid Panel | 790.6 |
| Lymphocytesulset | 279.3 |
| lyme | 8.81 |
| lactate | 277.87 |
| Lupas Anticoagulant | 289.81 |
| LH | 259.1 |
| Mercury | 985 |
| MTHFR | 289.7 |
| Magnesium | |
| Natural Killer Function | 279.19 |
| Neopterin | 279.9 |
| Neurospect scan | 294.9, 980.9, 979.9, 985.0 |
| Oxalate 24hr | 271.8 |
| Ova & Parasite | 009.1, 136.9 |
| porphyrin | 948.1 |
| pyruvate | 277.87 |
| potassium | |
| Plasma phosphothanolamine | 270.4 |
| Sed Rate | |
| Serotinin | 790.6 |
| Stool c Difficile | 8.45 |
| Strep | 34 |
| TFT w/Auto Ab | |
| Thyroid Peroxidate | 244.9 |
| Free T3 | 244.9 |
| TSH | 244.9 |
| Antithroglobulin | 244.9 |
| Reverse T3 | 244.9 |
| T4 Thyroxine | 244.9 |
| Urine creatinine | 276.51 |
| Urine copper | 275.1 |
| Urine calcium w/creatinine | 275.1 |
| U/A | 599 |
| Urine Culture | 599 |
| Urine acid glycine | 112.85 |
| Urine organic screen | 112.85 |
| Vitamin A | E933.5 |
| Valproic Acid | 760.77 |
| VMA | 790.6 |
| Vaccine | |
| Tetanus | V03.7 |
| Diphtheria | V03.5 |
| Pertussis | V03.6 |
| Polio | V04.0 |
| Measles | V04.2 |
| Mumps | V04.6 |
| Rubella | V04.3 |
| Varicella | V05.4 |
| Zinc | 790.6 |
