ICD-10 · PDGM grouping

D37-D48 — Neoplasms of uncertain behavior, polycythemia vera and myelodysplastic syndromes

Every ICD-10-CM code in this range and the PDGM clinical group CMS assigns to it, read from the CMS grouper crosswalk v07.1.26.

OASIS-E2 v1.00.0 · ingested 2026-04-26

Codes in range

115

No clinical group

A period cannot be grouped from these.

Barred as primary

CMS rejects these in the primary position.

Where these codes group

93 of the 115 codes in D37-D48 group to MMTA - Infectious Disease, Neoplasms, and Blood-Forming Diseases, but the range is not uniform — it spreads across 2 clinical groups. A further 17 are assigned no clinical group at all, which means a 30-day period cannot be grouped from them.

Every code in D37-D48

Descriptions are CMS’s own, abbreviated as CMS abbreviates them.

Code	Description	Clinical group	Primary position
D3701	Neoplasm of uncertain behavior of lip	K	Accepted
D3702	Neoplasm of uncertain behavior of tongue	K	Accepted
D37030	Neoplasm of uncertain behavior of the parotid salivary gland	K	Accepted
D37031	Neoplasm of uncrt behavior of the sublingual salivary gland	K	Accepted
D37032	Neoplasm of uncrt behav of the submandibular salivary gland	K	Accepted
D37039	Neoplasm of uncrt behavior of the major salivary gland, unsp	K	Accepted
D3704	Neoplasm of uncertain behavior of the minor salivary glands	K	Accepted
D3705	Neoplasm of uncertain behavior of pharynx	K	Accepted
D3709	Neoplasm of uncertain behavior of sites of the oral cavity	K	Accepted
D371	Neoplasm of uncertain behavior of stomach	K	Accepted
D372	Neoplasm of uncertain behavior of small intestine	K	Accepted
D373	Neoplasm of uncertain behavior of appendix	K	Accepted
D374	Neoplasm of uncertain behavior of colon	K	Accepted
D375	Neoplasm of uncertain behavior of rectum	K	Accepted
D376	Neoplasm of uncertain behavior of liver, GB & bile duct	K	Accepted
D378	Neoplasm of uncertain behavior of oth digestive organs	K	Accepted
D379	Neoplasm of uncertain behavior of digestive organ, unsp	None	Cannot group
D380	Neoplasm of uncertain behavior of larynx	K	Accepted
D381	Neoplasm of uncertain behavior of trachea, bronchus and lung	K	Accepted
D382	Neoplasm of uncertain behavior of pleura	K	Accepted
D383	Neoplasm of uncertain behavior of mediastinum	K	Accepted
D384	Neoplasm of uncertain behavior of thymus	K	Accepted
D385	Neoplasm of uncertain behavior of other respiratory organs	K	Accepted
D386	Neoplasm of uncertain behavior of respiratory organ, unsp	None	Cannot group
D390	Neoplasm of uncertain behavior of uterus	K	Accepted
D3910	Neoplasm of uncertain behavior of unspecified ovary	None	Cannot group
D3911	Neoplasm of uncertain behavior of right ovary	K	Accepted
D3912	Neoplasm of uncertain behavior of left ovary	K	Accepted
D392	Neoplasm of uncertain behavior of placenta	K	Accepted
D398	Neoplasm of uncertain behavior of oth female genital organs	K	Accepted
D399	Neoplasm of uncertain behavior of female genital organ, unsp	None	Cannot group
D400	Neoplasm of uncertain behavior of prostate	K	Accepted
D4010	Neoplasm of uncertain behavior of unspecified testis	None	Cannot group
D4011	Neoplasm of uncertain behavior of right testis	K	Accepted
D4012	Neoplasm of uncertain behavior of left testis	K	Accepted
D408	Neoplasm of uncertain behavior of oth male genital organs	K	Accepted
D409	Neoplasm of uncertain behavior of male genital organ, unsp	None	Cannot group
D4100	Neoplasm of uncertain behavior of unspecified kidney	None	Cannot group
D4101	Neoplasm of uncertain behavior of right kidney	K	Accepted
D4102	Neoplasm of uncertain behavior of left kidney	K	Accepted
D4110	Neoplasm of uncertain behavior of unspecified renal pelvis	None	Cannot group
D4111	Neoplasm of uncertain behavior of right renal pelvis	K	Accepted
D4112	Neoplasm of uncertain behavior of left renal pelvis	K	Accepted
D4120	Neoplasm of uncertain behavior of unspecified ureter	None	Cannot group
D4121	Neoplasm of uncertain behavior of right ureter	K	Accepted
D4122	Neoplasm of uncertain behavior of left ureter	K	Accepted
D413	Neoplasm of uncertain behavior of urethra	K	Accepted
D414	Neoplasm of uncertain behavior of bladder	K	Accepted
D418	Neoplasm of uncertain behavior of oth urinary organs	K	Accepted
D419	Neoplasm of uncertain behavior of unspecified urinary organ	None	Cannot group
D420	Neoplasm of uncertain behavior of cerebral meninges	B	Accepted
D421	Neoplasm of uncertain behavior of spinal meninges	K	Accepted
D429	Neoplasm of uncertain behavior of meninges, unspecified	K	Accepted
D430	Neoplasm of uncertain behavior of brain, supratentorial	B	Accepted
D431	Neoplasm of uncertain behavior of brain, infratentorial	B	Accepted
D432	Neoplasm of uncertain behavior of brain, unspecified	B	Accepted
D433	Neoplasm of uncertain behavior of cranial nerves	B	Accepted
D434	Neoplasm of uncertain behavior of spinal cord	K	Accepted
D438	Neoplasm of uncertain behavior of prt central nervous system	K	Accepted
D439	Neoplasm of uncertain behavior of cnsl, unsp	None	Cannot group
D440	Neoplasm of uncertain behavior of thyroid gland	K	Accepted
D4410	Neoplasm of uncertain behavior of unspecified adrenal gland	None	Cannot group
D4411	Neoplasm of uncertain behavior of right adrenal gland	K	Accepted
D4412	Neoplasm of uncertain behavior of left adrenal gland	K	Accepted
D442	Neoplasm of uncertain behavior of parathyroid gland	K	Accepted
D443	Neoplasm of uncertain behavior of pituitary gland	K	Accepted
D444	Neoplasm of uncertain behavior of craniopharyngeal duct	K	Accepted
D445	Neoplasm of uncertain behavior of pineal gland	K	Accepted
D446	Neoplasm of uncertain behavior of carotid body	K	Accepted
D447	Neoplasm of uncrt behav of aortic body and oth paraganglia	K	Accepted
D449	Neoplasm of uncertain behavior of unsp endocrine gland	None	Cannot group
D45	Polycythemia vera	K	Accepted
D460	Refractory anemia without ring sideroblasts, so stated	K	Accepted
D461	Refractory anemia with ring sideroblasts	K	Accepted
D4620	Refractory anemia with excess of blasts, unspecified	K	Accepted
D4621	Refractory anemia with excess of blasts 1	K	Accepted
D4622	Refractory anemia with excess of blasts 2	K	Accepted
D464	Refractory anemia, unspecified	K	Accepted
D469	Myelodysplastic syndrome, unspecified	K	Accepted
D46A	Refractory cytopenia with multilineage dysplasia	K	Accepted
D46B	Refract cytopenia w multilin dysplasia and ring sideroblasts	K	Accepted
D46C	Myelodysplastic syndrome w isolated del(5q) chromsoml abnlt	K	Accepted
D46Z	Other myelodysplastic syndromes	K	Accepted
D4701	Cutaneous mastocytosis	K	Accepted
D4702	Systemic mastocytosis	K	Accepted
D4709	Other mast cell neoplasms of uncertain behavior	K	Accepted
D471	Chronic myeloproliferative disease	K	Accepted
D472	Monoclonal gammopathy	K	Accepted
D473	Essential (hemorrhagic) thrombocythemia	K	Accepted
D474	Osteomyelofibrosis	K	Accepted
D479	Neoplm of uncrt behav of lymphoid,hematpoetc & rel tiss,unsp	K	Accepted
D47Z1	Post-transplant lymphoproliferative disorder (PTLD)	None	Not accepted
D47Z2	Castleman disease	K	Accepted
D47Z9	Oth neoplm of uncrt behav of lymphoid, hematpoetc & rel tiss	K	Accepted
D480	Neoplasm of uncertain behavior of bone/artic cartl	K	Accepted
D48110	Desmoid tumor of head and neck	K	Accepted
D48111	Desmoid tumor of chest wall	K	Accepted
D48112	Desmoid tumor, intrathoracic	K	Accepted
D48113	Desmoid tumor of abdominal wall	K	Accepted
D48114	Desmoid tumor, intraabdominal	K	Accepted
D48115	Desmoid tumor of upper extremity and shoulder girdle	K	Accepted
D48116	Desmoid tumor of lower extremity and pelvic girdle	K	Accepted
D48117	Desmoid tumor of back	K	Accepted
D48118	Desmoid tumor of other site	K	Accepted
D48119	Desmoid tumor of unspecified site	None	Cannot group
D4819	Oth neoplasm of uncertain behavior of connctv/soft tiss	K	Accepted
D482	Neoplm of uncrt behav of prph nerves and autonm nervous sys	K	Accepted
D483	Neoplasm of uncertain behavior of retroperitoneum	K	Accepted
D484	Neoplasm of uncertain behavior of peritoneum	K	Accepted
D485	Neoplasm of uncertain behavior of skin	K	Accepted
D4860	Neoplasm of uncertain behavior of unspecified breast	None	Cannot group
D4861	Neoplasm of uncertain behavior of right breast	K	Accepted
D4862	Neoplasm of uncertain behavior of left breast	K	Accepted
D487	Neoplasm of uncertain behavior of other specified sites	K	Accepted
D489	Neoplasm of uncertain behavior, unspecified	None	Cannot group

Source: CMS HH PPS Grouper Software v07.1.26, effective 2026-04-01. This is the crosswalk Medicare runs a claim through. Grouping also depends on admission source, timing, the OASIS functional items and the rest of the diagnosis list.

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D37-D48 — Neoplasms of uncertain behavior, polycythemia vera and myelodysplastic syndromes

Where these codes group

Every code in D37-D48

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