ICD-10-CM Alphabetic Index · FY 2026 474 Entries
Abnormal in the ICD-10-CM Index ICD-10-CM
The main term Abnormal, abnormality, abnormalities carries 474 index entries pointing to 261 ICD-10-CM codes. Every indented line below refines the term by site, cause, or type. Verify any candidate code in the Tabular List before using it.
✓ Built from the official CMS FY 2026 index fileEffective Oct 1, 2025 – Sep 30, 2026
474
Index Entries
261
Codes Referenced
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Default Code
A
Letter
474 of 474 shown
ICD-10-CM
Index Entries Under Abnormal 474 entries · 261 codes
Abnormal, abnormality, abnormalities
acid-base balance (mixed) E87.4
albumin R77.0
alphafetoprotein R77.2
alveolar ridge K08.9
anatomical relationship Q89.9
anti-cyclic citrullinated protein antibody and rheumatoid factor R76.81
anti-CCP (cyclic citrullinated protein) R76.81
apertures, congenital, diaphragm Q79.1
atrial septal, specified NEC Q21.19
auditory perception H93.29- Non-billable
diplacusis see Diplacusis
hyperacusis see Hyperacusis
recruitment see Recruitment, auditory
threshold shift see Shift, auditory threshold
autosomes Q99.9
fragile site Q95.5
basal metabolic rate R94.8
biosynthesis, testicular androgen E29.1
bleeding time R79.1
blood amino-acid level R79.83
blood-gas level R79.81
blood level (of)
cobalt R79.0
copper R79.0
iron R79.0
lithium R78.89
magnesium R79.0
mineral NEC R79.0
zinc R79.0
blood pressure
elevated R03.0
low reading (nonspecific) R03.1
blood sugar R73.09
bowel sounds R19.15
absent R19.11
hyperactive R19.12
brain scan R94.02
breathing R06.9
caloric test R94.138
cerebrospinal fluid R83.9
cytology R83.6
drug level R83.2
enzyme level R83.0
hormones R83.1
immunology R83.4
microbiology R83.5
nonmedicinal level R83.3
specified type NEC R83.8
chemistry, blood R79.9
C-reactive protein R79.82
drugs see Findings, abnormal, in blood
gas level R79.81
minerals R79.0
pancytopenia D61.818
PTT R79.1
specified NEC R79.89
toxins see Findings, abnormal, in blood
chest sounds (friction) (rales) R09.89
chromosome, chromosomal Q99.9
with more than three X chromosomes, female Q97.1
analysis result R89.8
bronchial washings R84.8
cerebrospinal fluid R83.8
cervix uteri NEC R87.89
nasal secretions R84.8
nipple discharge R89.8
peritoneal fluid R85.89
pleural fluid R84.8
prostatic secretions R86.8
saliva R85.89
seminal fluid R86.8
sputum R84.8
synovial fluid R89.8
throat scrapings R84.8
vagina R87.89
vulva R87.89
wound secretions R89.8
dicentric replacement Q93.2
ring replacement Q93.2
sex Q99.8 Non-billable
female phenotype Q97.9
specified NEC Q97.8
male phenotype Q98.9
specified NEC Q98.8
structural male Q98.6
specified NEC Q99.8 Non-billable
clinical findings NEC R68.89
coagulation D68.9
newborn, transient P61.6
profile R79.1
time R79.1
communication see Fistula
conjunctiva, vascular H11.41- Non-billable
coronary artery Q24.5
cortisol-binding globulin E27.8
course, eustachian tube Q17.8
creatinine clearance R94.4
cytology
anus R85.619
atypical squamous cells cannot exclude high grade squamous intraepithelial lesion (ASC-H) R85.611
atypical squamous cells of undetermined significance (ASC-US) R85.610
cytologic evidence of malignancy R85.614
high grade squamous intraepithelial lesion (HGSIL) R85.613
human papillomavirus (HPV) DNA test
high risk positive R85.81
low risk positive R85.82
inadequate smear R85.615
low grade squamous intraepithelial lesion (LGSIL) R85.612
satisfactory anal smear but lacking transformation zone R85.616
specified NEC R85.618
unsatisfactory smear R85.615
female genital organs see Abnormal, Papanicolaou (smear)
dark adaptation curve H53.61
dentofacial NEC see Anomaly, dentofacial
development, developmental Q89.9
central nervous system Q07.9
diagnostic imaging
abdomen, abdominal region NEC R93.5
biliary tract R93.2
bladder R93.41
breast R92.8
central nervous system NEC R90.89
cerebrovascular NEC R90.89
coronary circulation R93.1
digestive tract NEC R93.3
gastrointestinal (tract) R93.3
genitourinary organs R93.89
head R93.0
heart R93.1
intrathoracic organ NEC R93.89
kidney R93.42- Non-billable
limbs R93.6
liver R93.2
lung (field) R91.8
musculoskeletal system NEC R93.7
renal pelvis R93.41
retroperitoneum R93.5
site specified NEC R93.89
skin and subcutaneous tissue R93.89
skull R93.0
testis R93.81- Non-billable
urinary organs specified NEC R93.49
ureter R93.41
direction, teeth, fully erupted M26.30
ear ossicles, acquired NEC H74.39- Non-billable
ankylosis see Ankylosis, ear ossicles
discontinuity see Discontinuity, ossicles, ear
partial loss see Loss, ossicles, ear (partial)
Ebstein Q22.5
echocardiogram R93.1
echoencephalogram R90.81
echogram see Abnormal, diagnostic imaging
electrocardiogram [ECG] [EKG] R94.31
electroencephalogram [EEG] R94.01
electrolyte see Imbalance, electrolyte
electromyogram [EMG] R94.131
electro-oculogram [EOG] R94.110
electrophysiological intracardiac studies R94.39
electroretinogram [ERG] R94.111
erythrocytes
congenital, with perinatal jaundice D58.9
feces (color) (contents) (mucus) R19.5
finding see Findings, abnormal, without diagnosis
fluid
amniotic see Abnormal, specimen, specified
cerebrospinal see Abnormal, cerebrospinal fluid
peritoneal see Abnormal, specimen, digestive organs
pleural see Abnormal, specimen, respiratory organs
synovial see Abnormal, specimen, specified
thorax (bronchial washings) (pleural fluid) see Abnormal, specimen, respiratory organs
vaginal see Abnormal, specimen, female genital organs
form
teeth K00.2
uterus see Anomaly, uterus
function studies
auditory R94.120
bladder R94.8
brain R94.09
cardiovascular R94.30
ear R94.128
endocrine NEC R94.7
eye NEC R94.118
kidney R94.4
liver R94.5
nervous system
central NEC R94.09
peripheral NEC R94.138
pancreas R94.8
placenta R94.8
pulmonary R94.2
special senses NEC R94.128
spleen R94.8
thyroid R94.6
vestibular R94.121
gait see Gait
hysterical F44.4
gastrin secretion E16.4
globulin R77.1
cortisol-binding E27.8
thyroid-binding E07.89
glomerular, minor N05.0 see also N00-N07 with fourth character .0
glucagon secretion E16.3
glucose tolerance (test) (non-fasting) R73.09
gravitational (G) forces or states (effect of) T75.81 Non-billable
hair (color) (shaft) L67.9
specified NEC L67.8
hard tissue formation in pulp (dental) K04.3
head movement R25.0
heart
rate R00.9
specified NEC R00.8
shadow R93.1
sounds NEC R01.2
hemoglobin (disease) D58.2 see also Disease, hemoglobin
trait see Trait, hemoglobin, abnormal
histology NEC R89.7
immunological findings R89.4
in serum R76.9
specified NEC R76.89
increase in appetite R63.2
involuntary movement see Abnormal, movement, involuntary
jaw closure M26.51
karyotype R89.8
kidney function test R94.4
knee jerk R29.2
leukocyte (cell) (differential) NEC D72.9
liver function test R79.89 see also Elevated, liver function, test
loss of
height R29.890
weight R63.4
mammogram NEC R92.8
calcification (calculus) R92.1
microcalcification R92.0
Mantoux test R76.11
movement (disorder) see also Disorder, movement
head R25.0
involuntary R25.9
fasciculation R25.3
of head R25.0
spasm R25.2
specified type NEC R25.8
tremor R25.1
myoglobin (Aberdeen) (Annapolis) R89.7
neonatal screening P09.9
for
congenital adrenal hyperplasia P09.2
congenital endocrine disease P09.2
congenital hematologic disorders P09.3
critical congenital heart disease P09.5
cystic fibrosis P09.4
hemoglobinopathy P09.3
hypothyroidism P09.2
inborn errors of metabolism P09.1
red cell membrane defects P09.3
sickle cell P09.3
specified NEC P09.8
hearing P09.6
oculomotor study R94.113
palmar creases Q82.8
Papanicolaou (smear)
anus R85.619
atypical squamous cells cannot exclude high grade squamous intraepithelial lesion (ASC-H) R85.611
atypical squamous cells of undetermined significance (ASC-US) R85.610
cytologic evidence of malignancy R85.614
high grade squamous intraepithelial lesion (HGSIL) R85.613
human papillomavirus (HPV) DNA test
high risk positive R85.81
low risk positive R85.82
inadequate smear R85.615
low grade squamous intraepithelial lesion (LGSIL) R85.612
satisfactory anal smear but lacking transformation zone R85.616
specified NEC R85.618
unsatisfactory smear R85.615
bronchial washings R84.6
cerebrospinal fluid R83.6
cervix R87.619
atypical squamous cells cannot exclude high grade squamous intraepithelial lesion (ASC-H) R87.611
atypical squamous cells of undetermined significance (ASC-US) R87.610
cytologic evidence of malignancy R87.614
high grade squamous intraepithelial lesion (HGSIL) R87.613
inadequate smear R87.615
low grade squamous intraepithelial lesion (LGSIL) R87.612
non-atypical endometrial cells R87.618
satisfactory cervical smear but lacking transformation zone R87.616
specified NEC R87.618
thin preparation R87.619
unsatisfactory smear R87.615
nasal secretions R84.6
nipple discharge R89.6
peritoneal fluid R85.69
pleural fluid R84.6
prostatic secretions R86.6
saliva R85.69
seminal fluid R86.6
sites NEC R89.6
sputum R84.6
synovial fluid R89.6
throat scrapings R84.6
vagina R87.629
atypical squamous cells cannot exclude high grade squamous intraepithelial lesion (ASC-H) R87.621
atypical squamous cells of undetermined significance (ASC-US) R87.620
cytologic evidence of malignancy R87.624
high grade squamous intraepithelial lesion (HGSIL) R87.623
inadequate smear R87.625
low grade squamous intraepithelial lesion (LGSIL) R87.622
specified NEC R87.628
thin preparation R87.629
unsatisfactory smear R87.625
vulva R87.69
wound secretions R89.6
partial thromboplastin time (PTT) R79.1
pelvis (bony) see Deformity, pelvis
percussion, chest (tympany) R09.89
periods (grossly) see Menstruation
phonocardiogram R94.39
plantar reflex R29.2
plasma
protein R77.9
specified NEC R77.8
viscosity R70.1
pleural (folds) Q34.0
posture R29.3
product of conception O02.9
specified type NEC O02.89
prothrombin time (PT) R79.1
pulmonary
artery, congenital Q25.79
function, newborn P28.89
test results R94.2
pulsations in neck R00.2
pupillary H21.56- Non-billable
function (reaction) (reflex) see Anomaly, pupil, function
radiological examination see Abnormal, diagnostic imaging
red blood cell (s) (morphology) (volume) R71.8
reflex see Reflex
renal function test R94.4
response to nerve stimulation R94.130
retinal correspondence H53.31
retinal function study R94.111
rheumatoid factor and anti-citrullinated protein antibody
with rheumatoid arthritis M05.A
without rheumatoid arthritis R76.81
rhythm, heart see also Arrhythmia
saliva see Abnormal, specimen, digestive organs
scan
kidney R94.4
liver R93.2
thyroid R94.6
secretion
gastrin E16.4
glucagon E16.3
semen, seminal fluid see Abnormal, specimen, male genital organs
serum level (of)
acid phosphatase R74.8
alkaline phosphatase R74.8
amylase R74.8
enzymes R74.9
specified NEC R74.8
lipase R74.8
triacylglycerol lipase R74.8
shape
gravid uterus see Anomaly, uterus
sinus venosus Q21.16
size, tooth, teeth K00.2
spacing, tooth, teeth, fully erupted M26.30
specimen
digestive organs (peritoneal fluid) (saliva) R85.9
cytology R85.69
drug level R85.2
enzyme level R85.0
histology R85.7
hormones R85.1
immunology R85.4
microbiology R85.5
nonmedicinal level R85.3
specified type NEC R85.89
female genital organs (secretions) (smears) R87.9
cytology R87.69
cervix R87.619
human papillomavirus (HPV) DNA test
high risk positive R87.810
low risk positive R87.820
inadequate (unsatisfactory) smear R87.615
non-atypical endometrial cells R87.618
specified NEC R87.618
vagina R87.629
human papillomavirus (HPV) DNA test
high risk positive R87.811
low risk positive R87.821
inadequate (unsatisfactory) smear R87.625
vulva R87.69
drug level R87.2
enzyme level R87.0
histological R87.7
hormones R87.1
immunology R87.4
microbiology R87.5
nonmedicinal level R87.3
specified type NEC R87.89
male genital organs (prostatic secretions) (semen) R86.9
cytology R86.6
drug level R86.2
enzyme level R86.0
histological R86.7
hormones R86.1
immunology R86.4
microbiology R86.5
nonmedicinal level R86.3
specified type NEC R86.8
nipple discharge see Abnormal, specimen, specified
respiratory organs (bronchial washings) (nasal secretions) (pleural fluid) (sputum) R84.9
cytology R84.6
drug level R84.2
enzyme level R84.0
histology R84.7
hormones R84.1
immunology R84.4
microbiology R84.5
nonmedicinal level R84.3
specified type NEC R84.8
specified organ, system and tissue NOS R89.9
cytology R89.6
drug level R89.2
enzyme level R89.0
histology R89.7
hormones R89.1
immunology R89.4
microbiology R89.5
nonmedicinal level R89.3
specified type NEC R89.8
synovial fluid see Abnormal, specimen, specified
thorax (bronchial washings) (pleural fluids) see Abnormal, specimen, respiratory organs
vagina (secretion) (smear) R87.629
vulva (secretion) (smear) R87.69
wound secretion see Abnormal, specimen, specified
spermatozoa see Abnormal, specimen, male genital organs
sputum (amount) (color) (odor) R09.3
stool (color) (contents) (mucus) R19.5
bloody K92.1
guaiac positive R19.5
synchondrosis Q78.8
thermography R93.89 see also Abnormal, diagnostic imaging
thyroid-binding globulin E07.89
tooth, teeth (form) (size) K00.2
toxicology (findings) R78.9
transport protein E88.09
tumor marker NEC R97.8
ultrasound results see Abnormal, diagnostic imaging
umbilical cord complicating delivery O69.9 Non-billable
urination NEC R39.198
urine (constituents) R82.90
bile R82.2
cytological examination R82.89
drugs R82.5
fat R82.0
glucose R81
heavy metals R82.6
hemoglobin R82.3
histological examination R82.89
ketones R82.4
microbiological examination (culture) R82.79
myoglobin R82.1
positive culture R82.79
protein see Proteinuria
specified substance NEC R82.998
chromoabnormality NEC R82.91
substances nonmedical R82.6
uterine hemorrhage see Hemorrhage, uterus
vectorcardiogram R94.39
visually evoked potential (VEP) R94.112
white blood cells D72.9
specified NEC D72.89
X-ray examination see Abnormal, diagnostic imaging
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Related Index Terms
DeformityDiplacusisDiscontinuityHyperacusisImbalanceMenstruationAll index terms starting with AIndex to Diseases and InjuriesICD-10-CM Code Lookup
Source: Centers for Medicare & Medicaid Services, FY 2026 ICD-10-CM Index to Diseases and Injuries release files, effective October 1, 2025 through September 30, 2026.
