ICD-10-CM Section · D37-D48
Neoplasms of uncertain behavior, polycythemia vera and myelodysplastic syndromes
140 codes in this section
140
Total Codes
115
Billable
25
Header (Non-Billable)
12
Top-Level Codes
About Section D37-D48
Section D37-D48 (D37-D48) covers neoplasms of uncertain behavior, polycythemia vera and myelodysplastic syndromes. It sits within the Neoplasms chapter (C00-D49). This section contains 140 ICD-10-CM codes, 115 billable diagnoses you can submit on a claim, and 25 non-billable header codes used to organize the hierarchy.
Codes are organized below by 3-character root. Click the root to see all subcodes underneath it, or click any individual code for full coverage data, payer policies, and linked CPT procedures.
Codes in D37-D48
Grouped by 3-character root code. Click any code for full detail.
D37
Neoplasm of uncertain behavior of oral cavity and digestive organs
19 subcodes
| D37.0 | Neoplasm of uncertain behavior of lip, oral cavity and pharynx | Header |
| D37.01 | Neoplasm of uncertain behavior of lip | Billable |
| D37.02 | Neoplasm of uncertain behavior of tongue | Billable |
| D37.03 | Neoplasm of uncertain behavior of the major salivary glands | Header |
| D37.030 | Neoplasm of uncertain behavior of the parotid salivary glands | Billable |
| D37.031 | Neoplasm of uncertain behavior of the sublingual salivary glands | Billable |
| D37.032 | Neoplasm of uncertain behavior of the submandibular salivary glands | Billable |
| D37.039 | Neoplasm of uncertain behavior of the major salivary glands, unspecified | Billable |
| D37.04 | Neoplasm of uncertain behavior of the minor salivary glands | Billable |
| D37.05 | Neoplasm of uncertain behavior of pharynx | Billable |
| D37.09 | Neoplasm of uncertain behavior of other specified sites of the oral cavity | Billable |
| D37.1 | Neoplasm of uncertain behavior of stomach | Billable |
| D37.2 | Neoplasm of uncertain behavior of small intestine | Billable |
| D37.3 | Neoplasm of uncertain behavior of appendix | Billable |
| D37.4 | Neoplasm of uncertain behavior of colon | Billable |
| D37.5 | Neoplasm of uncertain behavior of rectum | Billable |
| D37.6 | Neoplasm of uncertain behavior of liver, gallbladder and bile ducts | Billable |
| D37.8 | Neoplasm of uncertain behavior of other specified digestive organs | Billable |
| D37.9 | Neoplasm of uncertain behavior of digestive organ, unspecified | Billable |
D38
Neoplasm of uncertain behavior of middle ear and respiratory and intrathoracic organs
7 subcodes
| D38.0 | Neoplasm of uncertain behavior of larynx | Billable |
| D38.1 | Neoplasm of uncertain behavior of trachea, bronchus and lung | Billable |
| D38.2 | Neoplasm of uncertain behavior of pleura | Billable |
| D38.3 | Neoplasm of uncertain behavior of mediastinum | Billable |
| D38.4 | Neoplasm of uncertain behavior of thymus | Billable |
| D38.5 | Neoplasm of uncertain behavior of other respiratory organs | Billable |
| D38.6 | Neoplasm of uncertain behavior of respiratory organ, unspecified | Billable |
D39
Neoplasm of uncertain behavior of female genital organs
8 subcodes
| D39.0 | Neoplasm of uncertain behavior of uterus | Billable |
| D39.1 | Neoplasm of uncertain behavior of ovary | Header |
| D39.10 | Neoplasm of uncertain behavior of unspecified ovary | Billable |
| D39.11 | Neoplasm of uncertain behavior of right ovary | Billable |
| D39.12 | Neoplasm of uncertain behavior of left ovary | Billable |
| D39.2 | Neoplasm of uncertain behavior of placenta | Billable |
| D39.8 | Neoplasm of uncertain behavior of other specified female genital organs | Billable |
| D39.9 | Neoplasm of uncertain behavior of female genital organ, unspecified | Billable |
D40
Neoplasm of uncertain behavior of male genital organs
7 subcodes
| D40.0 | Neoplasm of uncertain behavior of prostate | Billable |
| D40.1 | Neoplasm of uncertain behavior of testis | Header |
| D40.10 | Neoplasm of uncertain behavior of unspecified testis | Billable |
| D40.11 | Neoplasm of uncertain behavior of right testis | Billable |
| D40.12 | Neoplasm of uncertain behavior of left testis | Billable |
| D40.8 | Neoplasm of uncertain behavior of other specified male genital organs | Billable |
| D40.9 | Neoplasm of uncertain behavior of male genital organ, unspecified | Billable |
D41
Neoplasm of uncertain behavior of urinary organs
16 subcodes
| D41.0 | Neoplasm of uncertain behavior of kidney | Header |
| D41.00 | Neoplasm of uncertain behavior of unspecified kidney | Billable |
| D41.01 | Neoplasm of uncertain behavior of right kidney | Billable |
| D41.02 | Neoplasm of uncertain behavior of left kidney | Billable |
| D41.1 | Neoplasm of uncertain behavior of renal pelvis | Header |
| D41.10 | Neoplasm of uncertain behavior of unspecified renal pelvis | Billable |
| D41.11 | Neoplasm of uncertain behavior of right renal pelvis | Billable |
| D41.12 | Neoplasm of uncertain behavior of left renal pelvis | Billable |
| D41.2 | Neoplasm of uncertain behavior of ureter | Header |
| D41.20 | Neoplasm of uncertain behavior of unspecified ureter | Billable |
| D41.21 | Neoplasm of uncertain behavior of right ureter | Billable |
| D41.22 | Neoplasm of uncertain behavior of left ureter | Billable |
| D41.3 | Neoplasm of uncertain behavior of urethra | Billable |
| D41.4 | Neoplasm of uncertain behavior of bladder | Billable |
| D41.8 | Neoplasm of uncertain behavior of other specified urinary organs | Billable |
| D41.9 | Neoplasm of uncertain behavior of unspecified urinary organ | Billable |
D42
Neoplasm of uncertain behavior of meninges
3 subcodes
| D42.0 | Neoplasm of uncertain behavior of cerebral meninges | Billable |
| D42.1 | Neoplasm of uncertain behavior of spinal meninges | Billable |
| D42.9 | Neoplasm of uncertain behavior of meninges, unspecified | Billable |
D43
Neoplasm of uncertain behavior of brain and central nervous system
7 subcodes
| D43.0 | Neoplasm of uncertain behavior of brain, supratentorial | Billable |
| D43.1 | Neoplasm of uncertain behavior of brain, infratentorial | Billable |
| D43.2 | Neoplasm of uncertain behavior of brain, unspecified | Billable |
| D43.3 | Neoplasm of uncertain behavior of cranial nerves | Billable |
| D43.4 | Neoplasm of uncertain behavior of spinal cord | Billable |
| D43.8 | Neoplasm of uncertain behavior of other specified parts of central nervous system | Billable |
| D43.9 | Neoplasm of uncertain behavior of central nervous system, unspecified | Billable |
D44
Neoplasm of uncertain behavior of endocrine glands
12 subcodes
| D44.0 | Neoplasm of uncertain behavior of thyroid gland | Billable |
| D44.1 | Neoplasm of uncertain behavior of adrenal gland | Header |
| D44.10 | Neoplasm of uncertain behavior of unspecified adrenal gland | Billable |
| D44.11 | Neoplasm of uncertain behavior of right adrenal gland | Billable |
| D44.12 | Neoplasm of uncertain behavior of left adrenal gland | Billable |
| D44.2 | Neoplasm of uncertain behavior of parathyroid gland | Billable |
| D44.3 | Neoplasm of uncertain behavior of pituitary gland | Billable |
| D44.4 | Neoplasm of uncertain behavior of craniopharyngeal duct | Billable |
| D44.5 | Neoplasm of uncertain behavior of pineal gland | Billable |
| D44.6 | Neoplasm of uncertain behavior of carotid body | Billable |
| D44.7 | Neoplasm of uncertain behavior of aortic body and other paraganglia | Billable |
| D44.9 | Neoplasm of uncertain behavior of unspecified endocrine gland | Billable |
D45
Polycythemia vera
0 subcodes
D46
Myelodysplastic syndromes
12 subcodes
| D46.0 | Refractory anemia without ring sideroblasts, so stated | Billable |
| D46.1 | Refractory anemia with ring sideroblasts | Billable |
| D46.2 | Refractory anemia with excess of blasts [RAEB] | Header |
| D46.20 | Refractory anemia with excess of blasts, unspecified | Billable |
| D46.21 | Refractory anemia with excess of blasts 1 | Billable |
| D46.22 | Refractory anemia with excess of blasts 2 | Billable |
| D46.4 | Refractory anemia, unspecified | Billable |
| D46.9 | Myelodysplastic syndrome, unspecified | Billable |
| D46.A | Refractory cytopenia with multilineage dysplasia | Billable |
| D46.B | Refractory cytopenia with multilineage dysplasia and ring sideroblasts | Billable |
| D46.C | Myelodysplastic syndrome with isolated del(5q) chromosomal abnormality | Billable |
| D46.Z | Other myelodysplastic syndromes | Billable |
D47
Other neoplasms of uncertain behavior of lymphoid, hematopoietic and related tissue
13 subcodes
| D47.0 | Mast cell neoplasms of uncertain behavior | Header |
| D47.01 | Cutaneous mastocytosis | Billable |
| D47.02 | Systemic mastocytosis | Billable |
| D47.09 | Other mast cell neoplasms of uncertain behavior | Billable |
| D47.1 | Chronic myeloproliferative disease | Billable |
| D47.2 | Monoclonal gammopathy | Billable |
| D47.3 | Essential (hemorrhagic) thrombocythemia | Billable |
| D47.4 | Osteomyelofibrosis | Billable |
| D47.9 | Neoplasm of uncertain behavior of lymphoid, hematopoietic and related tissue, unspecified | Billable |
| D47.Z | Other specified neoplasms of uncertain behavior of lymphoid, hematopoietic and related tissue | Header |
| D47.Z1 | Post-transplant lymphoproliferative disorder (PTLD) | Billable |
| D47.Z2 | Castleman disease | Billable |
| D47.Z9 | Other specified neoplasms of uncertain behavior of lymphoid, hematopoietic and related tissue | Billable |
D48
Neoplasm of uncertain behavior of other and unspecified sites
24 subcodes
| D48.0 | Neoplasm of uncertain behavior of bone and articular cartilage | Billable |
| D48.1 | Neoplasm of uncertain behavior of connective and other soft tissue | Header |
| D48.11 | Desmoid tumor | Header |
| D48.110 | Desmoid tumor of head and neck | Billable |
| D48.111 | Desmoid tumor of chest wall | Billable |
| D48.112 | Desmoid tumor, intrathoracic | Billable |
| D48.113 | Desmoid tumor of abdominal wall | Billable |
| D48.114 | Desmoid tumor, intraabdominal | Billable |
| D48.115 | Desmoid tumor of upper extremity and shoulder girdle | Billable |
| D48.116 | Desmoid tumor of lower extremity and pelvic girdle | Billable |
| D48.117 | Desmoid tumor of back | Billable |
| D48.118 | Desmoid tumor of other site | Billable |
| D48.119 | Desmoid tumor of unspecified site | Billable |
| D48.19 | Other specified neoplasm of uncertain behavior of connective and other soft tissue | Billable |
| D48.2 | Neoplasm of uncertain behavior of peripheral nerves and autonomic nervous system | Billable |
| D48.3 | Neoplasm of uncertain behavior of retroperitoneum | Billable |
| D48.4 | Neoplasm of uncertain behavior of peritoneum | Billable |
| D48.5 | Neoplasm of uncertain behavior of skin | Billable |
| D48.6 | Neoplasm of uncertain behavior of breast | Header |
| D48.60 | Neoplasm of uncertain behavior of unspecified breast | Billable |
| D48.61 | Neoplasm of uncertain behavior of right breast | Billable |
| D48.62 | Neoplasm of uncertain behavior of left breast | Billable |
| D48.7 | Neoplasm of uncertain behavior of other specified sites | Billable |
| D48.9 | Neoplasm of uncertain behavior, unspecified | Billable |
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on May 31, 2026.
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