This is not meant to be an exhaustive list of ICD-9 codes; rather, its purpose is to be a general yet inclusive enough list for general hematology/oncology use. That is, when one needs to find an ICD-9 to justify a lab test, diagnostic study, or medication, this should generally be sufficient. I suggest you use this is by using the search function in your web browser (for example, by pressing Ctrl + F) and typing in the general term you're looking for, such as anemia.
Note that we are slowly adding ICD-10 codes and will transform these lists into tables in the future for easy reference. There are often multiple ICD-10 codes for a given ICD-9 code, so use caution!

Oncology, solid tumor cancer diagnoses

195.2 Abdominal cavity
173.5 Abdominal wall (skin)
154.3 Anus (anal)
156.9 Biliary tract (cholangiocarcinoma), unspecified site
188.9 Bladder, unspecified site
233.7 Bladder, in situ
191.9 Brain, unspecified site
174.9 Breast, female, unspecified site
233.0 Breast, in situ (DCIS)
175.9 Breast, male, unspecified site
162.9 Bronchus, unspecified site
180.9 Cervix (cervival), unspecified site
233.1 Cervix uteri, in situ
170.9 Chondrosarcoma
153.9 Colon (colorectal), unspecified site
182.0 Endometrium (endometrial)
150.9 Esophagus (esophageal), unspecified site
170.9 Ewing's sarcoma
159.9 Gastrointestinal tract, unspecified site
184.9 Genital, female, unspecified site
187.9 Genital, male, unspecified site
153.9 Intestine (bowel), large, unspecified site
152.9 Intestine (bowel), small, unspecified site
176.9 Kaposi's Sarcoma, unspecified site
189.0 Kidney (renal)
155.0 Liver (hepatocellular), primary
155.2 Liver, not specified as primary or secondary
162.9 Lung (adenocarcinoma/squamous cell carcinoma), unspecified site
209.36 Merkel cell carcinoma
145.9 Mouth, unspecified site
147.9 Nasopharynx, unspecified site
170.9 Osteosarcoma
183.0 Ovary (ovarian)
157.9 Pancreas (pancreatic), unspecified part
163.8 Pleura/contiguous sites
185 Prostate
233.4 Prostate, in situ
154.1 Rectum
158.0 Retroperitoneum
171.9 Rhabdosarcoma
142.9 Salivary gland, unspecified site
171.9 Sarcoma, connective or soft tissue
172.9 Skin, melanoma, unspecified site
173.9 Skin, unspecified malignancy, unspecified site
151.9 Stomach, unspecified site
186.9 Testis (testicular), unspecified site
195.1 Thorax
193 Thyroid
141.9 Tongue, unspecified site
199.1 Unknown primary
179 Uterus (uterine), unspecified site

Metastases to locations

198.7 Metastasis to adrenal gland
198.5 Metastasis to bone and/or marrow
198.3 Metastasis to brain and/or spinal cord
197.7 Metastasis to liver
197.0 Metastasis to lung
196.9 Metastasis to lymph nodes NOS
198.4 Metastasis to meninges (carcinomatous meningitis)
197.3 Metastasis to pleura (malignant effusion)
197.6 Metastasis to retro/peritoneum

Oncology, hematologic diagnoses

Leukemia & multiple myeloma

207.00 Acute erythremia & erythroleukemia
207.00 Acute lymphoid leukemia (ALL)
206.00 Acute monocytic leukemia
205.00 Acyte myeloid leukemia (AML)
208.00 Acute leukemia, unspecified
277.30 E85.9 Amyloidosis
208.10 Chronic leukemia, unspecified
204.10 Chronic lymphoid leukemia (CLL)
206.10 Chronic monocytic leukemia
205.10 Chronic myeloid leukemia (CML)
202.40 Hairy cell leukemia
207.20 Megakaryocytic leukemia
273.1 D47.2 Monoclonal gammopathy of undetermined significance (MGUS)
203.00 C90.0[0-2] Multiple myeloma (MM)
203.10 C90.1[0-2] Plasma cell leukemia

Lymphoma

Note that billing codes with a * are not billable without the extra digit, which usually specifies anatomic distribution in the case of lymphoma.

ICD-9 ICD-10 Description
xx C84.7* Anaplastic large cell lymphoma, ALK-negative
xx C84.6* Anaplastic large cell lymphoma, ALK-positive
200.20 C83.7* Burkitt lymphoma
xx C84.A* Cutaneous T-cell lymphoma, NOS (CTCL)
xx C83.3* Diffuse large B-cell lymphoma (DLBCL)
xx C82.9* Follicular lymphoma
202.30 C96.A Histiocytosis, malignant, unspecified site
201.60 C81.2* Hodgkin lymphoma, mixed cellularity
201.90 C81.3* Hodgkin lymphoma, lymphocyte depleted
201.90 C81.4* Hodgkin lymphoma, lymphocyte-rich
201.50 C81.1* Hodgkin lymphoma, nodular sclerosing
201.40 C81.0* Hodgkin lymphoma, nodular lymphocyte-predominant
201.90 C81.9* Hodgkin lymphoma, unspecified
202.80 xx Lymphoma, other, unspecified site
200.4* C83.1* Mantle cell lymphoma
202.10 C84.0* Mycosis fungoides
202.70 C84.4* Peripheral T-cell lymphoma, NOS (PTCL)
202.20 C84.1* Sézary disease
xx C83.0* Small B-cell lymphoma
273.3 C88.0 Waldenström macroglobulinemia

Anatomic modifiers

These usually plug into the 5th digit, e.g. C84.13. Note that these may not be the same across all of the lymphomas, so use caution!

ICD-10 Digit Description
0 unspecified site
1 lymph nodes of head, face, and neck
2 intrathoracic lymph nodes
3 intra-abdominal lymph nodes
4 lymph nodes of axilla and upper limb
5 lymph nodes of inguinal region and lower limb
6 intrapelvic lymph nodes
7 spleen
8 lymph nodes of multiple sites
9 extranodal and solid organ sites

Myeloproliferative neoplasms

205.10 Chronic myeloid leukemia (CML)
202.6 Mastocytosis, malignant mast cell tumor
289.83 Myelofibrosis, primary myelofibrosis (PMF)
238.4 D45 Polycythemia vera (P. vera/PV)
238.71 D47.3 Thrombocythemia, essential (ET)

Bone marrow transplant

V42.81 Bone marrow replaced by transplant (post-transplant)
996.85 Complications bone marrow transplant (e.g graft vs. host)
V59.3 Donor, bone marrow
V59.02 Donor, blood stem cells
V42.82 Peripheral stem cells replaced by transplant (post-transplant)

Hematology, benign

286.7 Acquired coagulation factor deficiency (coagulopathy)
285.1 Anemia, acute blood loss
280.0 Anemia due to GI blood loss
285.21 Anemia in end-stage renal disease (ESRD)
285.22 Anemia in neoplastic disease
280.9 D50.9 Anemia, iron deficiency, unspecified
281.9 Anemia, macrocytic
285.29 D63.8 Anemia of chronic disease
285.9 D64.9 Anemia, unspecified
284.9 Aplastic anemia, unspecified
453.0 I82.0 Budd-Chiari syndrome
286.9 Coagulation defects (coagulopathy), unspecified
286.52 Coagulopathy, autoimmune inhibitors to clotting factors
288.3 D72.1 Eosinophilia
xx D69.41 Evan's syndrome (autoimmune hemolytic anemia & thrombocytopenia)
289.81 Factor V leiden mutation
714.1 Felty's syndrome (autoimmune neutropenia)
281.2 Folate-deficiency anemia
282.63 Hemoglobin SC disease
282.64 Hemoglobin SC disease with crisis
283.9 D59.9 Hemolytic anemia, acquired, unspecified
283.0 D59.1 Hemolytic anemia, autoimmune
282.9 Hemolytic anemia, hereditary, unspecified
283.19 Hemolytic anemia, non-autoimmune
286.0 Hemophilia A, congenital factor VIII disorder
286.1 Hemophilia B, congenital factor IX disorder
289.89 Hypercoagulable state, unspecified
289.89 Hypergammaglobulinemia
280.9 Iron deficiency anemia, unspecified
288.60 Leukocytosis/leucocytosis
V58.61 Long-term (current) use of anticoagulants (warfarin/Coumadin)
289.81 Lupus anticoagulation
270.4 MTHFR (Methylenetetrahydrofolate reductase‎) mutation
238.75 Myelodysplastic syndrome (MDS)
238.7 Myelosclerosis with myeloid metaplasia
288.0 Neutropenia
288.03 Neutropenia, drug-induced
289.89 Other specified diseases of blood and blood-forming organs
284.12 D61.811 Pancytopenia, drug induced, other
284.19 D61.818 Pancytopenia, other
281.0 Pernicious anemia
289.0 D75.1 Polycythemia, secondary
277.1 Porphyria, disorders of porphyrin metabolism
289.81 Protein C deficiency
289.81 Protein S deficiency
289.81 Prothrombin gene mutation
284.81 Red cell aplasia, acquired
284.9 Refractory anemia, unspecified
281.3 Refractory megaloblastic anemia
285.0 Refractory sideroblastic anemia
286.5 Secondary hypercoagulable state
282.6 Sickle-cell anemia (Hb SS), unspecified
282.62 Sickle cell anemia with crisis
282.5 Sickle cell trait
282.40 Thalassemia without crisis
287.33 Thrombocytopenia purpura, congenital
287.31 D69.3 Thrombocytopenia purpura, immune (ITP)
287.32 Thrombocytopenia, Evans syndrome
287.39 Thrombocytopenia, primary, unspecified
287.4 Thrombocytopenia, secondary
287.5 Thrombocytopenia, unspecified
446.6 M31.1 Thrombotic thrombocytopenia purpura (TTP)
289.9 D75.9 Thrombocytosis (unspecified diseases of blood and blood forming organs)
281.1 Vitamin B12 deficiency anemia, other
286.4 von Willebrand's disease

Chemotherapy-related

284.11 Antineoplastic chemotherapy induced pancytopenia
285.3 Antineoplastic chemotherapy induced anemia
995.29 Complication of chemotherapy
999.81 Extravasation of vesicant chemotherapy
V07.39 Need for other prophylactic chemotherapy
V58.11 Encounter for antineoplastic chemotherapy
V66.2 Convalescence following chemotherapy
V67.2 Follow-up examination following chemotherapy
V87.41 Personal history of antineoplastic chemotherapy

Personal history of...

ICD-9 ICD-10 Description Category
V12.72 Z86.010 Personal history of colonic polyps Benign neoplasm
Z85.71 Personal history of Hodgkin lymphoma Malignant neoplasm
Z92.3 Personal history of irradiation Treatment

Symptoms & non-oncology diagnoses

584.9 Acute renal failure (ARF)
980.0 Alcohol toxicity, toxic effect of ethyl alcohol
783.0 Anorexia
795.79 Antiphospholipid syndrome
445.89 Artheroembolism, unspecified
716.90 Arthritis, unspecified site
789.51 Ascites, malignant
789.59 Ascites, other
117.3 Aspergillus
493.90 Asthma, unspecified
790.7 Bacteremia
516.8 BOOP (Bronchiolitis obliterans, organizing pneumonia)
466.0 Bronchitis, acute
782.7 Bruising, spontaneous
799.4 Cachexia
112.9 Candidiasis
112.0 Candidiasis in the mouth (thrush)
682.9 Cellulitis or abscess, unspecified site
996.74 Central venous line/access/catheter, other complications
999.31 Central venous line/catheter infection
786.52 Chest pain, pleuritic
786.51 Chest pain, precordial
786.50 Chest pain, unspecified
571.2 Cirrhosis, alcoholic cirrhosis of liver
V.70.7 Clinical trials patient, examination of patient on clinical trial
790.92 Coagulation profile (coagulopathy), abnormal
v65.5 Concern about cancer without diagnosis
428.0 Congestive heart failure, unspecified type
078.5 + 790.8 CMV viremia (both codes required)
460 Cold (acute nasopharyngitis)
564.00 Constipation
786.2 Cough
585.9 Chronic renal failure (chronic kidney disease/CKD)
276.51 Dehydration
250.00 Diabetes mellitus, type 2 or unspecified
787.91 Diarrhea
008.45 Diarrhea, C. diff (Clostridium difficile)
719.7 Difficulty in walking
453.9 I82.91 Deep vein thrombosis (DVT), unspecified site
536.8 Dyspepsia
787.20 Dysphagia, unspecified
787.21 Dysphagia, oral phase
787.22 Dysphagia, pharyngeal phase
786.09 Dyspnea
780.94 Early satiety
782.3 Edema NOS
530.10 Esophagitis
381.81 Eustachian tube dysfunction
783.7 Failure to thrive
E888.9 Fall, accidental
780.79 Fatigue
780.60 Fever, unspecified
276.9 Fluid/electrolyte imbalance
780.62 Postprocedural fever
780.63 Postvaccination fever
780.64 Chills (without fever)
530.81 Gastroesophageal reflux (GERD)
780.1 Hallucination
784.0 Headache NOS
729.92 Hematoma, nontraumatic hematoma of soft tissue
275.01 Hemochromatosis, hereditary
275.02 Hemochromatosis, due to repeated red blood cell transfusions
275.03 Hemochromatosis, other
289.84 Heparin-induced thrombocytopenia +/- thrombosis (HIT)
573.3 Hepatitis, unspecified
070.54 Hepatitis C without mention of hepatic coma
553.3 Hernia, hiatal
042 HIV disease/AIDS
784.49 Hoarseness
275.42 Hypercalcemia
289.89 Hypergammaglobulinemia
790.6 Hyperglycemia
790.21 Hyperglycemia, impaired fasting glucose
780.8 Hyperhidrosis
276.0 Hypernatremia
611.1 Hyperplasia/hypertrophy of the breast
276.0 Hyperkalemia
401.9 Hypertension
242.90 Hyperthyrodism, unspecified
275.41 Hypocalcemia
279.00 Hypogammaglobulinemia
251.2 Hypoglycemia
276.1 Hyponatremia
276.8 Hypokalemia
258.0 Hypotension, orthostatic
244.9 Hypothyroidism
996.62 Infection, vascular device/implant
782.4 Jaundice
781.3 Lack of coordination
780.4 Lightheaded, dizzy
V58.69 Long-term (current) use of other medications
786.6 Lung mass, chest mass
785.6 Lymphadenopathy
780.93 Memory loss
781.6 Meningismus
626.9 Menstruation disorders, other abnormal bleeding from female genital tract
041.12 MRSA (methicillin resistant Staphylococcus aureus), unspecified site
528.00 Mucositis
340 Multiple sclerosis (MS)
728.87 Muscle weakness
117.9 Mycosis
787.02 Nausea only
787.01 Nausea and vomiting
356.9 Neuropathy, unspecified idiopathic peripheral neuropathy
786.02 Orthopnea
715.90 Osteoarthritis, unspecified site
733.90 Osteopenia
733.00 Osteoporosis, unspecified site
729.5 Pain in limb
789.06 Pain, abdominal-epigastric
789.07 Pain, abdominal-generalized
789.04 Pain, abdominal-LLQ
789.02 Pain, abdominal-LUQ
789.03 Pain, abdominal-RLQ
789.01 Pain, abdominal-RUQ
338.11 Pain, acute due to trauma
338.18 Pain, acute post-operative
724.5 Pain, back general
724.2 Pain, back lumbar
338.21 Pain, chronic due to trauma
338.28 Pain, chronic NOS
338.3 Pain, neoplasm related
785.1 Palpitations
567.9 Peritonitis
782.7 Petechiae
136.3 Pneumocystis
482.9 Pneumonia, bacterial unspecified
486 Pneumonia, organism unspecified
480.9 Pneumonia, viral
783.5 Polydipsia
698.9 Pruritis/itchiness
415.19 Pulmonary embolism (PE)
990 + 348.89 Radiation necrosis of the brain
782.1 Rash
780.99 Rigors
780.39 Seizure disorder, unspecified
038.9 Sepsis
786.05 Shortness of breath (dyspnea)
780.50 Sleep disturbance
789.2 Splenomegaly
289.51 Splenomegaly, chronic
528.00 Stomatitis
780.2 Syncope/presyncope
434.00 Thrombosis, cerebral
444.9 Thrombosis and embolism, arterial
241.9 Thyroid nodule, unspecified nontoxic nodular goiter
465.9 Upper respiratory infection, acute, unspecified site
478.9 Upper respiratory infection, other and unspecified diseases
599.0 Urinary tract infection (UTI)
787.03 Vomiting
536.2 Vomiting, intractable
732.1 Waldenstrom's disease
780.79 Weakness, malaise
783.1 Weight gain
783.21 Weight loss
786.07 Wheezing, NOS

Psychiatric

300.00 Anxiety state
296.80 Bipolar disorder, unspecified
301.83 Borderline personality disorder
311 Depression, NOS
309.0 Depressive reaction, acute/situational
303.90 Drug use/dependence, alcohol
304.90 Drug use/dependence, NOS
304.00 Drug use/dependence, opioid
V15.81 Medical non-compliance with danger to self
300.3 Obsessive-compulsive disorder (OCD)
969.3 Overdose, antipsychotic
969.4 Overdose, benzodiazepine
965.00 Overdose, narcotic
977.8 Overdose, tricyclic
300.01 Panic disorder, NOS
297.9 Paranoid state, NOS
298.9 Psychosis, NOS
295.80 Schizophrenia, NOS
300.82 Somatization disorder, NOS
V62.84 Suicidal ideation

External links

ICD-9 codes are in the public domain
ICD9Data.com
Wikipedia list of ICD-9 codes