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  3. Diagnosis Codes in MS-DRG 843 - Other Myeloproliferative Disorders Or Poorly Differentiated Neoplastic Diagnoses With MCC

Diagnosis Codes in MS-DRG 843 - Other Myeloproliferative Disorders Or Poorly Differentiated Neoplastic Diagnoses With MCC

The Medicare Severity Diagnosis-Related Group (MS-DRG) is a patient classification system used to categorize hospital cases based on clinical similarity and expected resource use. MS-DRGs organize all possible principal diagnoses into mutually exclusive groups known as Major Diagnostic Categories (MDCs), which help determine reimbursement under the Medicare Inpatient Prospective Payment System.

This section lists the diagnosis codes included in MS-DRG V42.0: Other Myeloproliferative Disorders or Poorly Differentiated Neoplastic Diagnoses with MCC from October 1, 2024, through September 30, 2025.

MS-DRG: 843

MS-DRG Title: Other Myeloproliferative Disorders or Poorly Differentiated Neoplastic Diagnoses with MCC

MCD: 17

Relative Weight: 1.8931 Relative Weight
The relative weight of a diagnostic related group determines the reimbursement rate based on the severity of a patient's illness and the associated cost of care during hospitalization.

Geometric LOS: 1.89 Geometric Length of Stay
The geometric mean length of stay (GMLOS) is used by Medicare to calculate the reimbursement for patients whose medical treatment takes a much longer or shorter time than average.

Arithmetic LOS: 5.40 Arithmetic Length of Stay
The average length of stay (ALOS) reflects the average number of days a patient spends in a hospital for each admission.

  1. C45 - Mesothelioma
  2. C48 - Malignant neoplasm of retroperitoneum and peritoneum
  3. C76 - Malignant neoplasm of other and ill-defined sites
  4. C76.4 - Malignant neoplasm of upper limb
  5. C76.5 - Malignant neoplasm of lower limb
  6. C79 - Secondary malignant neoplasm of other and unspecified
  7. C79.8 - Secondary malignant neoplasm of other specified site
  8. C7A - Malignant neuroendocrine tumors
  9. C7A.0 - Malignant carcinoid tumors
  10. C7A.09 - Malignant carcinoid tumors of other sites
  11. C7B - Secondary neuroendocrine tumors
  12. C7B.0 - Secondary carcinoid tumors
  13. C80 - Malignant neoplasm without specification of site
  14. C96 - Other and unspecified malignant neoplasms of lymphoid,
  15. D09 - Carcinoma in situ of other and unspecified sites
  16. D19 - Benign neoplasm of mesothelial tissue
  17. D36 - Benign neoplasm of other and unspecified sites
  18. D3A - Benign neuroendocrine tumors
  19. D3A.0 - Benign carcinoid tumors
  20. D3A.09 - Benign carcinoid tumors of other sites
  21. D48 - Neoplasm of uncertain behavior of other and unspecifie
  22. D49 - Neoplasms of unspecified behavior
  23. D49.8 - Neoplasm of unspecified behavior of other specified
  24. E88.0 - Disorders of plasma-protein metabolism, not elsewher
  25. Q85 - Phakomatoses, not elsewhere classified
  26. Q85.8 - Other phakomatoses, not elsewhere classified
  27. Z85 - Personal history of malignant neoplasm
  28. Z85.0 - Personal history of malignant neoplasm of digestive
  29. Z85.02 - Personal history of malignant neoplasm of stomach
  30. Z85.03 - Personal history of malignant neoplasm of large int
  31. Z85.04 - Personal history of malignant neoplasm of rectum, r
  32. Z85.06 - Personal history of malignant neoplasm of small int
  33. Z85.1 - Personal history of malignant neoplasm of trachea, b
  34. Z85.11 - Personal history of malignant neoplasm of bronchus
  35. Z85.2 - Personal history of malignant neoplasm of other resp
  36. Z85.23 - Personal history of malignant neoplasm of thymus
  37. Z85.4 - Personal history of malignant neoplasm of genital or
  38. Z85.5 - Personal history of malignant neoplasm of urinary tr
  39. Z85.52 - Personal history of malignant neoplasm of kidney
  40. Z85.7 - Personal history of other malignant neoplasms of lym
  41. Z85.8 - Personal history of malignant neoplasms of other org
  42. Z85.81 - Personal history of malignant neoplasm of lip, oral
  43. Z85.82 - Personal history of malignant neoplasm of skin
  44. Z85.83 - Personal history of malignant neoplasm of bone and
  45. Z85.84 - Personal history of malignant neoplasm of eye and n
  46. Z85.85 - Personal history of malignant neoplasm of endocrine
  47. Z87.41 - Personal history of dysplasia of the female genital

  • -

    • C37 - Malignant neoplasm of thymus

  • C45 - Mesothelioma

    • C45.7 - Mesothelioma of other sites

    • C45.9 - Mesothelioma, unspecified

  • C48 - Malignant neoplasm of retroperitoneum and peritoneum

    • C48.0 - Malignant neoplasm of retroperitoneum

  • C76 - Malignant neoplasm of other and ill-defined sites

    • C76.8 - Malignant neoplasm of other specified ill-defined sites

  • C76.4 - Malignant neoplasm of upper limb

    • C76.40 - Malignant neoplasm of unspecified upper limb

    • C76.41 - Malignant neoplasm of right upper limb

    • C76.42 - Malignant neoplasm of left upper limb

  • C76.5 - Malignant neoplasm of lower limb

    • C76.50 - Malignant neoplasm of unspecified lower limb

    • C76.51 - Malignant neoplasm of right lower limb

    • C76.52 - Malignant neoplasm of left lower limb

  • C79 - Secondary malignant neoplasm of other and unspecified sites

    • C79.9 - Secondary malignant neoplasm of unspecified site

  • C79.8 - Secondary malignant neoplasm of other specified sites

    • C79.89 - Secondary malignant neoplasm of other specified sites

  • C7A - Malignant neuroendocrine tumors

    • C7A.1 - Malignant poorly differentiated neuroendocrine tumors

    • C7A.8 - Other malignant neuroendocrine tumors

  • C7A.0 - Malignant carcinoid tumors

    • C7A.00 - Malignant carcinoid tumor of unspecified site

  • C7A.09 - Malignant carcinoid tumors of other sites

    • C7A.091 - Malignant carcinoid tumor of the thymus

    • C7A.098 - Malignant carcinoid tumors of other sites

  • C7B - Secondary neuroendocrine tumors

    • C7B.1 - Secondary Merkel cell carcinoma

    • C7B.8 - Other secondary neuroendocrine tumors

  • C7B.0 - Secondary carcinoid tumors

    • C7B.00 - Secondary carcinoid tumors, unspecified site

    • C7B.09 - Secondary carcinoid tumors of other sites

  • C80 - Malignant neoplasm without specification of site

    • C80.0 - Disseminated malignant neoplasm, unspecified

    • C80.1 - Malignant (primary) neoplasm, unspecified

    • C80.2 - Malignant neoplasm associated with transplanted organ

  • D09 - Carcinoma in situ of other and unspecified sites

    • D09.3 - Carcinoma in situ of thyroid and other endocrine glands

    • D09.8 - Carcinoma in situ of other specified sites

    • D09.9 - Carcinoma in situ, unspecified

  • D19 - Benign neoplasm of mesothelial tissue

    • D19.7 - Benign neoplasm of mesothelial tissue of other sites

    • D19.9 - Benign neoplasm of mesothelial tissue, unspecified

  • D36 - Benign neoplasm of other and unspecified sites

    • D36.7 - Benign neoplasm of other specified sites

    • D36.9 - Benign neoplasm, unspecified site

  • D3A - Benign neuroendocrine tumors

    • D3A.8 - Other benign neuroendocrine tumors

  • D3A.0 - Benign carcinoid tumors

    • D3A.00 - Benign carcinoid tumor of unspecified site

  • D3A.09 - Benign carcinoid tumors of other sites

    • D3A.098 - Benign carcinoid tumors of other sites

  • D48 - Neoplasm of uncertain behavior of other and unspecified sites

    • D48.7 - Neoplasm of uncertain behavior of other specified sites

    • D48.9 - Neoplasm of uncertain behavior, unspecified

  • D49 - Neoplasms of unspecified behavior

    • D49.9 - Neoplasm of unspecified behavior of unspecified site

  • D49.8 - Neoplasm of unspecified behavior of other specified sites

    • D49.81 - Neoplasm of unspecified behavior of retina and choroid

    • D49.89 - Neoplasm of unspecified behavior of other specified sites

  • E88.0 - Disorders of plasma-protein metabolism, not elsewhere classified

    • E88.02 - Plasminogen deficiency

    • E88.09 - Other disorders of plasma-protein metabolism, not elsewhere classified

  • Q85 - Phakomatoses, not elsewhere classified

    • Q85.9 - Phakomatosis, unspecified

  • Q85.8 - Other phakomatoses, not elsewhere classified

    • Q85.81 - PTEN hamartoma tumor syndrome

    • Q85.82 - Other Cowden syndrome

    • Q85.83 - Von Hippel-Lindau syndrome

    • Q85.89 - Other phakomatoses, not elsewhere classified

  • Z85 - Personal history of malignant neoplasm

    • Z85.3 - Personal history of malignant neoplasm of breast

    • Z85.6 - Personal history of leukemia

    • Z85.9 - Personal history of malignant neoplasm, unspecified

  • Z85.0 - Personal history of malignant neoplasm of digestive organs

    • Z85.00 - Personal history of malignant neoplasm of unspecified digestive organ

    • Z85.01 - Personal history of malignant neoplasm of esophagus

    • Z85.05 - Personal history of malignant neoplasm of liver

    • Z85.07 - Personal history of malignant neoplasm of pancreas

    • Z85.09 - Personal history of malignant neoplasm of other digestive organs

  • Z85.02 - Personal history of malignant neoplasm of stomach

    • Z85.020 - Personal history of malignant carcinoid tumor of stomach

    • Z85.028 - Personal history of other malignant neoplasm of stomach

  • Z85.03 - Personal history of malignant neoplasm of large intestine

    • Z85.030 - Personal history of malignant carcinoid tumor of large intestine

    • Z85.038 - Personal history of other malignant neoplasm of large intestine

  • Z85.04 - Personal history of malignant neoplasm of rectum, rectosigmoid junction, and anus

    • Z85.040 - Personal history of malignant carcinoid tumor of rectum

    • Z85.048 - Personal history of other malignant neoplasm of rectum, rectosigmoid junction, and anus

  • Z85.06 - Personal history of malignant neoplasm of small intestine

    • Z85.060 - Personal history of malignant carcinoid tumor of small intestine

    • Z85.068 - Personal history of other malignant neoplasm of small intestine

  • Z85.1 - Personal history of malignant neoplasm of trachea, bronchus and lung

    • Z85.12 - Personal history of malignant neoplasm of trachea

  • Z85.11 - Personal history of malignant neoplasm of bronchus and lung

    • Z85.110 - Personal history of malignant carcinoid tumor of bronchus and lung

    • Z85.118 - Personal history of other malignant neoplasm of bronchus and lung

  • Z85.2 - Personal history of malignant neoplasm of other respiratory and intrathoracic organs

    • Z85.20 - Personal history of malignant neoplasm of unspecified respiratory organ

    • Z85.21 - Personal history of malignant neoplasm of larynx

    • Z85.22 - Personal history of malignant neoplasm of nasal cavities, middle ear, and accessory sinuses

    • Z85.29 - Personal history of malignant neoplasm of other respiratory and intrathoracic organs

  • Z85.23 - Personal history of malignant neoplasm of thymus

    • Z85.230 - Personal history of malignant carcinoid tumor of thymus

    • Z85.238 - Personal history of other malignant neoplasm of thymus

  • Z85.4 - Personal history of malignant neoplasm of genital organs

    • Z85.40 - Personal history of malignant neoplasm of unspecified female genital organ

    • Z85.41 - Personal history of malignant neoplasm of cervix uteri

    • Z85.42 - Personal history of malignant neoplasm of other parts of uterus

    • Z85.43 - Personal history of malignant neoplasm of ovary

    • Z85.44 - Personal history of malignant neoplasm of other female genital organs

    • Z85.45 - Personal history of malignant neoplasm of unspecified male genital organ

    • Z85.46 - Personal history of malignant neoplasm of prostate

    • Z85.47 - Personal history of malignant neoplasm of testis

    • Z85.48 - Personal history of malignant neoplasm of epididymis

    • Z85.49 - Personal history of malignant neoplasm of other male genital organs

  • Z85.5 - Personal history of malignant neoplasm of urinary tract

    • Z85.50 - Personal history of malignant neoplasm of unspecified urinary tract organ

    • Z85.51 - Personal history of malignant neoplasm of bladder

    • Z85.53 - Personal history of malignant neoplasm of renal pelvis

    • Z85.54 - Personal history of malignant neoplasm of ureter

    • Z85.59 - Personal history of malignant neoplasm of other urinary tract organ

  • Z85.52 - Personal history of malignant neoplasm of kidney

    • Z85.520 - Personal history of malignant carcinoid tumor of kidney

    • Z85.528 - Personal history of other malignant neoplasm of kidney

  • Z85.8 - Personal history of malignant neoplasms of other organs and systems

    • Z85.89 - Personal history of malignant neoplasm of other organs and systems

  • Z85.81 - Personal history of malignant neoplasm of lip, oral cavity, and pharynx

    • Z85.810 - Personal history of malignant neoplasm of tongue

    • Z85.818 - Personal history of malignant neoplasm of other sites of lip, oral cavity, and pharynx

    • Z85.819 - Personal history of malignant neoplasm of unspecified site of lip, oral cavity, and pharynx

  • Z85.82 - Personal history of malignant neoplasm of skin

    • Z85.820 - Personal history of malignant melanoma of skin

    • Z85.821 - Personal history of Merkel cell carcinoma

    • Z85.828 - Personal history of other malignant neoplasm of skin

  • Z85.83 - Personal history of malignant neoplasm of bone and soft tissue

    • Z85.830 - Personal history of malignant neoplasm of bone

    • Z85.831 - Personal history of malignant neoplasm of soft tissue

  • Z85.84 - Personal history of malignant neoplasm of eye and nervous tissue

    • Z85.840 - Personal history of malignant neoplasm of eye

    • Z85.841 - Personal history of malignant neoplasm of brain

    • Z85.848 - Personal history of malignant neoplasm of other parts of nervous tissue

  • Z85.85 - Personal history of malignant neoplasm of endocrine glands

    • Z85.850 - Personal history of malignant neoplasm of thyroid

    • Z85.858 - Personal history of malignant neoplasm of other endocrine glands

  • Z87.41 - Personal history of dysplasia of the female genital tract

    • Z87.410 - Personal history of cervical dysplasia