The codes in these crosswalks were selected based on the most commonly used ICD-9 codes according to historical MedStar Health coding data and from professional coding associations, and are ordered by frequency of use.
Not all the codes you need are contained in this list. For a comprehensive list of ICD-10 codes, use Diagnosis Assistant or the IMO Anywhere tool.
| Code | Description (ICD-9 codes are in blue) |
|---|---|
| 518.81 | Acute respiratory failure |
| J96.90 | Respiratory failure, unspecified, unspecified whether with hypoxia or hypercapnia |
| J96.01 | Acute respiratory failure with hypoxia |
|
J96.02 |
Acute respiratory failure with hypercapnia |
|
J96.91 |
Respiratory failure, unspecified with hypoxia |
|
J96.92 |
Respiratory failure, unspecified with hypercapnia |
|
J96.00 |
Acute respiratory failure, unspecified whether with hypoxia or hypercapnia |
| 401.9 | Unspecified essential hypertension |
| I15.1 | Hypertension secondary to other renal disorders |
| I15.2 | Hypertension secondary to endocrine disorders |
|
I15.0 |
Renovascular hypertension |
| O10 |
Pre-existing hypertension complicating pregnancy, childbirth and the puerperium |
| O11 |
Pre-existing hypertension with pre-eclampsia |
| I10 |
Essential (primary) hypertension |
|
I15.0 |
Renovascular hypertension |
|
I15.9 |
Secondary hypertension, unspecified |
|
I97.3 |
Postprocedural hypertension |
| K76.6 |
Portal hypertension |
| 431 | Intracerebral hemorrhage |
| I61.0 | Nontraumatic intracerebral hemorrhage in hemisphere, subcortical |
| I61.1 | Nontraumatic intracerebral hemorrhage in hemisphere, cortical |
|
I61.2 |
Nontraumatic intracerebral hemorrhage in hemisphere, unspecified |
|
I61.3 |
Nontraumatic intracerebral hemorrhage in brain stem |
|
I61.4 |
Nontraumatic intracerebral hemorrhage in cerebellum |
|
I61.5 |
Nontraumatic intracerebral hemorrhage, intraventricular |
|
I61.6 |
Nontraumatic intracerebral hemorrhage, multiple localized |
|
I61.9 |
Nontraumatic intracerebral hemorrhage, unspecified |
|
I61.8 |
Other nontraumatic intracerebral hemorrhage |
| 430 | Subarachnoid hemorrhage |
|
| Under ICD-10, 16 specific codes are available to specify the leaking artery. Examples include the following: |
| I60.00 | Nontraumatic subarachnoid hemorrhage from unspecified carotid siphon and bifurcation |
|
I60.01 |
Nontraumatic subarachnoid hemorrhage from right carotid siphon and bifurcation |
|
I60.02 |
Nontraumatic subarachnoid hemorrhage from left carotid siphon and bifurcation |
|
I60.10 |
Nontraumatic subarachnoid hemorrhage from unspecified middle cerebral artery |
|
I60.11 |
Nontraumatic subarachnoid hemorrhage from right middle cerebral artery |
|
I60.12 |
Nontraumatic subarachnoid hemorrhage from left middle cerebral artery |
|
I60.20 |
Nontraumatic subarachnoid hemorrhage from unspecified anterior communicating artery |
|
I60.22 |
Nontraumatic subarachnoid hemorrhage from left anterior communicating artery |
|
I60.21 |
Nontraumatic subarachnoid hemorrhage from right anterior communicating artery |
|
|
When the source of the hemorrhage is not discernible, code choices are: |
|
I60.6 |
Nontraumatic subarachnoid hemorrhage from other intracranial arteries |
|
I60.7 |
Nontraumatic subarachnoid hemorrhage from unspecified intracranial artery |
|
I60.8 |
Other nontraumatic subarachnoid hemorrhage |
|
I60.9 |
Nontraumatic subarachnoid hemorrhage, unspecified |
| 518.82 | Other pulmonary insufficiency not elsewhere classified |
| J95.1 | Acute pulmonary insufficiency following thoracic surgery |
| J95.2 | Acute pulmonary insufficiency following nonthoracic surgery |
|
J95.3 |
Chronic pulmonary insufficiency following surgery |
|
J80 |
Acute respiratory distress syndrome |
|
J81.0 |
Acute pulmonary edema |
|
J81.1 |
Chronic pulmonary edema |
| I27.0 |
Primary pulmonary hypertension |
| I27.2 |
Other secondary pulmonary hypertension |
| 584.9 | Acute kidney failure, unspecified |
| N17.0 | Acute kidney failure with tubular necrosis |
| N17.1 | Acute kidney failure with acute cortical necrosis |
|
N17.2 |
Acute kidney failure with medullary necrosis |
|
N17.8 |
Other acute kidney failure |
|
N17.9 |
Acute kidney failure, unspecified |
| 288.6 | Leukocytosis, unspecified |
| D72.89 | Other specified disorders of white blood cells |
| D72.820 | Lymphocytosis (symptomatic) |
|
D72.823 |
Leukemoid reaction |
|
D72.824 |
Basophilia |
|
D72.828 |
Other elevated white blood cell count |
|
D72.829 |
Elevated white blood cell count, unspecified |
| 427.31 | Atrial fibrillation |
| I48.0 | Paroxysmal atrial fibrillation |
| I48.1 | Persistent atrial fibrillation |
|
I48.2 |
Persistent atrial fibrillation |
|
I48.91 |
Unspecified atrial fibrillation |
| 338.18 | Other acute postoperative pain |
| G89.18 | Other acute postprocedural pain |
| G89.11 | Acute pain due to trauma |
|
G89.12 |
Acute post-thoracotomy pain |
|
G89.1 |
Acute pain, not elsewhere classified |
| 285.1 | Acute posthemorrhagic anemia |
| D62 | Acute posthemorrhagic anemia |
| 518.52 | Other pulmonary insufficiency, not elsewhere classified, following trauma and surgery |
| J95.1 | Acute pulmonary insufficiency following thoracic surgery |
| J95.2 | Acute pulmonary insufficiency following nonthoracic surgery |
|
J95.3 |
Chronic pulmonary insufficiency following surgery |
|
J80 |
Acute respiratory distress syndrome |
|
J81.0 |
Acute pulmonary edema |
|
J81.1 |
Chronic pulmonary edema |
|
J95.822 |
Acute and chronic postprocedural respiratory failure |
| 780.09 | Alteration of consciousness other |
|
| If coma symptoms, document response to pain, sound, motor, and spontaneous movement 24 hours and more post admission to derive code. Multiple examples (not comprehensive) of diagnosis based on coma scale noted below: |
| R40.2123 | Coma scale, eyes open, to pain, at hospital admission |
|
R40.2124 |
Coma scale, eyes open, to pain, 24 hours or more after hospital admission |
|
R40.2134 |
Coma scale, eyes open, to sound, 24 hours or more after hospital admission |
|
R40.2144 |
Coma scale, eyes open, spontaneous, 24 hours or more after hospital admission |
|
R40.2114 |
Coma scale, eyes open, never, 24 hours or more after hospital admission |
|
R40.2314 |
Coma scale, best motor response, none, 24 hours or more after hospital admission |
|
R40.2334 |
Coma scale, best motor response, abnormal, 24 hours or more after hospital admission |
|
|
Other codes for alteration of consciousness include: |
| R40.0 |
Somnolence |
| R40.1 |
Stupor |
| 285.9 | Anemia unspecified |
|
| Document cause of anemia, (i.e. whether it is aplastic, related to chronic disease, post hemorrhagic, nutritional/iron deficiency, or acquired hemolytic). Diagnosis choices under ICD-10 include: |
| D64.81 | Anemia due to antineoplastic chemotherapy |
|
D63.0 |
Anemia in neoplastic disease |
|
D64.0 |
Hereditary sideroblastic anemia |
|
D64.2 |
Secondary sideroblastic anemia due to drugs and toxins |
|
D61.810 |
Antineoplastic chemotherapy induced pancytopenia |
|
D61.1 |
Drug-induced aplastic anemia |
|
D61.3 |
Idiopathic aplastic anemia |
| D63.1 |
Anemia in chronic kidney disease |
| D62 |
Acute posthemorrhagic anemia |
| D50.9 |
Iron deficiency anemia, unspecified |
| D55.3 |
Anemia due to disorders of nucleotide metabolism |
| 530.81 | Esophageal reflux |
| K21.0 | Gastro-esophageal reflux disease with esophagitis |
| K21.9 | Gastro-esophageal reflux disease without esophagitis |
| 263.9 | Unspecified protein-calorie malnutrition |
| E44.1 | Mild protein-calorie malnutrition |
| E44.0 | Moderate protein-calorie malnutrition |
|
|
Other malnutrition ICD-10 codes include: |
|
E41 |
Nutritional marasmus |
| E42 |
Marasmic kwashiorkor |
| E43 |
Unspecified severe protein-calorie malnutrition |
| E46 |
Unspecified protein-calorie malnutrition |
| 486 | Pneumonia organism unspecified |
| J12.0 | Adenoviral pneumonia |
| J12.1 | Respiratory syncytial virus pneumonia |
|
J12.2 |
Parainfluenza virus pneumonia |
|
J12.3 |
Human metapneumovirus pneumonia |
|
J12.81 |
Pneumonia due to SARS-associated coronavirus |
|
J12.89 |
Other viral pneumonia |
|
J12.9 |
Viral pneumonia, unspecified |
|
J13 |
Pneumonia due to Streptococcus pneumoniae |
|
J14 |
Pneumonia due to Hemophilus influenzae |
| J15.0 |
Pneumonia due to Klebsiella pneumoniae |
|
J15.1 |
Pneumonia due to Pseudomonas |
|
J15.20 |
Pneumonia due to staphylococcus, unspecified |
|
J15.211 |
Pneumonia due to Methicillin susceptible Staphylococcus aureus |
|
J15.212 |
Pneumonia due to Methicillin resistant Staphylococcus aureus |
|
J15.29 |
Pneumonia due to other staphylococcus |
|
J15.3 |
Pneumonia due to streptococcus, group B |
|
J15.4 |
Pneumonia due to other streptococci |
|
J15.5 |
Pneumonia due to Escherichia coli |
|
J15.6 |
Pneumonia due to other aerobic Gram-negative bacteria |
|
J15.7 |
Pneumonia due to Mycoplasma pneumoniae |
|
J15.9 |
Unspecified bacterial pneumonia due to gram positive cocci |
|
J16.0 |
Chlamydial pneumonia |
| 038.9 | Unspecified septicemia |
|
| Separate Codes for sepsis and organism causing sepsis have been combined into one code under ICD-10. Specific examples include: |
| A40.0 | Sepsis due to streptococcus, group A |
|
A40.1 |
Sepsis due to streptococcus, group B |
|
A40.3 |
Sepsis due to Streptococcus pneumoniae |
|
A40.8 |
Other streptococcal sepsis |
|
A41.59 |
Other Gram-negative sepsis |
| A41.81 |
Sepsis due to Enterococcus |
| 434.91 | Cerebral artery occlusion unspecified with cerebral infarction |
|
| Multiple specific diagnosis choices are present under ICD-10 for Cerebral artery infarction. Documentation should note the specific cerebral artery (when possible) with an occlusion or stenosis and the laterality where applicable. Examples include: |
| I63.511 | Cerebral infarction due to unspecified occlusion or stenosis of right middle cerebral artery |
|
I63.512 |
Cerebral infarction due to unspecified occlusion or stenosis of left middle cerebral artery |
|
I63.519 |
Cerebral infarction due to unspecified occlusion or stenosis of unspecified middle cerebral artery |
|
I63.521 |
Cerebral infarction due to unspecified occlusion or stenosis of right anterior cerebral artery |
|
I63.522 |
Cerebral infarction due to unspecified occlusion or stenosis of left anterior cerebral artery |
|
I63.529 |
Cerebral infarction due to unspecified occlusion or stenosis of unspecified anterior cerebral artery |
|
I63.531 |
Cerebral infarction due to unspecified occlusion or stenosis of right posterior cerebral artery |
|
I63.532 |
Cerebral infarction due to unspecified occlusion or stenosis of left posterior cerebral artery |
| 244.9 | Unspecified acquired hypothyroidism |
|
| Documentation should note specific type of acquired hypothyroidism when known. Below are examples under ICD-10: |
| E01.2 | Iodine-deficiency related (endemic) goiter, unspecified |
|
E02 |
Subclinical iodine-deficiency hypothyroidism |
| E89.0 |
Postprocedural hypothyroidism |
|
E03.3 |
Postinfectious hypothyroidism |
| E03.8 |
Other specified hypothyroidism |
| E03.2 |
Hypothyroidism due to medicaments and other exogenous substances |
| E06.3 |
Autoimmune thyroiditis |
| E03.4 |
Atrophy of thyroid (acquired) |
| 599 | Urinary tract infection site not specified |
| N39.0 | Urinary tract infection, site not specified |