ICD-10 Code for Abnormal

The ICD-10-CM 2027 alphabetic index lists abnormal, abnormality, abnormalities with the subterms below. More specific codes depend on the details documented, as listed in the official index (261 codes, 252 billable).

Index entries for Abnormal

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- (header)
- 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 (header)
  - female phenotype – Q97.9
    - specified NEC – Q97.8
  - male phenotype – Q98.9
    - specified NEC – Q98.8
  - structural male – Q98.6
- specified NEC – Q99.8 (header)
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- (header)
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)
    - 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- (header)
- 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- (header)
- urinary organs specified NEC – R93.49
- ureter – R93.41
direction, teeth, fully erupted – M26.30
ear ossicles, acquired NEC – H74.39- (header)
- 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 (header)
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) – 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)
    - 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- (header)
- 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)
        high risk positive – R87.810
        low risk positive – R87.820
      - inadequate (unsatisfactory) – R87.615
      - non-atypical endometrial cells – R87.618
      - specified NEC – R87.618
    - vagina – R87.629
      - human papillomavirus (HPV)
        high risk positive – R87.811
        low risk positive – R87.821
      - inadequate (unsatisfactory) – 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 (header)
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

How to choose the right code

Start with the main term, then pick the indented subterm that matches the documentation (type, cause, site, laterality, episode of care). Always confirm the code in the tabular list: follow its Excludes1/Excludes2, “code first” and “use additional code” notes, and add a 7th character where required.

Source: CDC/NCHS ICD-10-CM FY2027 alphabetic index.