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Notes

Here are basic steps for using the diseases index:

  1. Search the Alphabetical Index for a diagnostic term
  2. Check the Tabular List
  3. Read the code’s instructions (at the beginning of the chapter)
  4. If it is an injury or trauma, add a seventh character. Use one of the following:

ICD-10 Chapter List

ChapterBlocksTitle
IA00–B99Certain Infectious and Parasitic Diseases
IIC00–D48Neoplasms
IIID50–D89Diseases of the Blood and Blood-Forming Organs and Certain Disorders Involving the Immune Mechanism
IVE00–E90Endocrine, Nutritional and Metabolic Diseases
VF00–F99Mental and Behavioral Disorders
VIG00–G99Diseases of the Nervous System
VIIH00–H59Diseases of the Eye and Adnexa
VIIIH60–H95Diseases of the Ear and Mastoid Process
IXI00–I99Diseases of the Circulatory System
XJ00–J99Diseases of the Respiratory System
XIK00–K93Diseases of the Digestive System
XIIL00–L99Diseases of the Skin and Subcutaneous Tissue
XIIIM00–M99Diseases of the Musculoskeletal System and Connective Tissue
XIVN00–N99Diseases of the Genitourinary System
XVO00–O99Pregnancy, Childbirth and the Puerperium
XVIP00–P96Certain Conditions Originating in the Perinatal Period
XVIIQ00–Q99Congenital Malformations, Deformations and Chromosomal Abnormalities
XVIIIR00–R99Symptoms, Signs and Abnormal Clinical and Laboratory Findings, Not Elsewhere Classified
XIXS00–T98Injury, Poisoning and Certain Other Consequences of External Causes
XXV01–Y98External Causes of Morbidity and Mortality
XXIZ00–Z99Factors Influencing Health Status and Contact with Health Services
XXIIU00–U99Codes for Special Purposes

Overview of ICD-10

Common Diagnosis Codes

DiseaseICD-10
Alzheimer’s diseaseG30.00 early onset
G30.01 late onset
Angina pectorisI20.0 unstable
I20.1 with spasm
Anorexia nervosaF50.0
AppendicitisK35
Asthma, unspecifiedJ45.9
Asthma with COPDJ44
Attention deficit disorderF90.0
F90.1 with hyperactivity
Bipolar affective disorderF31
Cerebral palsyG80.0–G80.9
Cerumen impactionH61.2
Congestive heart failureI50.0
Conjunctivitis (pinkeye)H10.3 acute
H10.4 chronic
Diabetes mellitusE10–E14
EpilepsyG40.0–G40.9
Esophageal refluxK21.9
Esophagitis (reflux)K21.0
Encounter for flu vaccineZ23
FatigueR53
Gastric ulcerK20
GlaucomaH40.0–H42.8
Generalized anxiety disorderF41.1
HeadacheR51
Hepatorenal syndromeK76.7
Human immunodeficiency virus (HIV)B20.0–B23. 8
HyperlipidemiaE78.0–E78.5
HypothyroidE03.0–E03.9
Infectious mononucleosisB27
InfluenzaJ09–avian
J10–other
Influenza with pneumoniaJ10.0
Iron deficiency anemiaD50.0–D50.9
Irritable bowel syndromeK58.0 w/diarrhea
K58.9 w/o diarrhea
Kidney failure (acute)N17
Kidney disease (chronic) (CKD)N18
Kidney failure (unspecified)N19
Opioid abuseF11.1
Otitis media, acute serousH65.0
Parkinson’s diseaseG20–G22
Poison ivy causing dermatitisL23.7
Senile dementiaF03
Social anxiety disorderF40.11
Sore throatR07.0
Swimmer’s ear, acuteH60.0–H60.9
Tinnitus, unspecifiedH93.1
Tonsillitis, acuteJ03.9
Tonsillitis, chronicJ35.0
Toxic effect of alcoholT51
Upper respiratory infectionJ00–J06.9
Urinary tract infectionN39.0

Factors Influencing Health Status and Contact With Health Services

Well child visitZ00.1
Routine gynecologic examZ01.4
General adult medical examZ00.0
Pre-employment examinationZ02.1
Exam—recruitment into armed forcesZ02.3
Sports physical examinationZ02.5
Blood alcohol and blood drug testingZ02.83
Counseling related to sexual behavior, orientationZ70.1

Guidelines for Hypertension Coding

Types of HypertensionICD-10 code
Hypertension, essential, or NOSI10
Hypertension with heart diseaseI11.0 w/heart failure
I11.9 w/o heart failure
Hypertensive renal diseaseI12.0 w/renal failure
I12.9 w/o renal failure
Hypertensive heart and renal diseaseI13.0–I13.2
Hypertensive cerebrovascular diseaseI60.0–I60.9 plus code HTN
Secondary hypertensive retinopathy (involving vessels of the eye)H35.0
Hypertension secondary to other disorders (renal, endocrine, other)I15.0–I15.9

Subtopic(s)