ICD-10-CM/PCS MS-DRG v34.0 Definitions Manual
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MDC 09 Diseases & Disorders of the Skin, Subcutaneous Tissue & Breast
Breast Disorders
Malignancy MCC CC CC or MCC DRG
Yes Yes n/a n/a 597
Yes No Yes n/a 598
Yes No No n/a 599
No Yes 600
No No 601

DRG 597 MALIGNANT BREAST DISORDERS WITH MCC

DRG 598 MALIGNANT BREAST DISORDERS WITH CC

DRG 599 MALIGNANT BREAST DISORDERS WITHOUT CC/MCC

DRG 600 NON-MALIGNANT BREAST DISORDERS WITH CC/MCC

DRG 601 NON-MALIGNANT BREAST DISORDERS WITHOUT CC/MCC

MALIGNANT BREAST DISORDERS

PRINCIPAL DIAGNOSIS

C50011Malignant neoplasm of nipple and areola, right female breast
C50012Malignant neoplasm of nipple and areola, left female breast
C50019Malignant neoplasm of nipple and areola, unspecified female breast
C50021Malignant neoplasm of nipple and areola, right male breast
C50022Malignant neoplasm of nipple and areola, left male breast
C50029Malignant neoplasm of nipple and areola, unspecified male breast
C50111Malignant neoplasm of central portion of right female breast
C50112Malignant neoplasm of central portion of left female breast
C50119Malignant neoplasm of central portion of unspecified female breast
C50121Malignant neoplasm of central portion of right male breast
C50122Malignant neoplasm of central portion of left male breast
C50129Malignant neoplasm of central portion of unspecified male breast
C50211Malignant neoplasm of upper-inner quadrant of right female breast
C50212Malignant neoplasm of upper-inner quadrant of left female breast
C50219Malignant neoplasm of upper-inner quadrant of unspecified female breast
C50221Malignant neoplasm of upper-inner quadrant of right male breast
C50222Malignant neoplasm of upper-inner quadrant of left male breast
C50229Malignant neoplasm of upper-inner quadrant of unspecified male breast
C50311Malignant neoplasm of lower-inner quadrant of right female breast
C50312Malignant neoplasm of lower-inner quadrant of left female breast
C50319Malignant neoplasm of lower-inner quadrant of unspecified female breast
C50321Malignant neoplasm of lower-inner quadrant of right male breast
C50322Malignant neoplasm of lower-inner quadrant of left male breast
C50329Malignant neoplasm of lower-inner quadrant of unspecified male breast
C50411Malignant neoplasm of upper-outer quadrant of right female breast
C50412Malignant neoplasm of upper-outer quadrant of left female breast
C50419Malignant neoplasm of upper-outer quadrant of unspecified female breast
C50421Malignant neoplasm of upper-outer quadrant of right male breast
C50422Malignant neoplasm of upper-outer quadrant of left male breast
C50429Malignant neoplasm of upper-outer quadrant of unspecified male breast
C50511Malignant neoplasm of lower-outer quadrant of right female breast
C50512Malignant neoplasm of lower-outer quadrant of left female breast
C50519Malignant neoplasm of lower-outer quadrant of unspecified female breast
C50521Malignant neoplasm of lower-outer quadrant of right male breast
C50522Malignant neoplasm of lower-outer quadrant of left male breast
C50529Malignant neoplasm of lower-outer quadrant of unspecified male breast
C50611Malignant neoplasm of axillary tail of right female breast
C50612Malignant neoplasm of axillary tail of left female breast
C50619Malignant neoplasm of axillary tail of unspecified female breast
C50621Malignant neoplasm of axillary tail of right male breast
C50622Malignant neoplasm of axillary tail of left male breast
C50629Malignant neoplasm of axillary tail of unspecified male breast
C50811Malignant neoplasm of overlapping sites of right female breast
C50812Malignant neoplasm of overlapping sites of left female breast
C50819Malignant neoplasm of overlapping sites of unspecified female breast
C50821Malignant neoplasm of overlapping sites of right male breast
C50822Malignant neoplasm of overlapping sites of left male breast
C50829Malignant neoplasm of overlapping sites of unspecified male breast
C50911Malignant neoplasm of unspecified site of right female breast
C50912Malignant neoplasm of unspecified site of left female breast
C50919Malignant neoplasm of unspecified site of unspecified female breast
C50921Malignant neoplasm of unspecified site of right male breast
C50922Malignant neoplasm of unspecified site of left male breast
C50929Malignant neoplasm of unspecified site of unspecified male breast
C792Secondary malignant neoplasm of skin
C7981Secondary malignant neoplasm of breast
D0500Lobular carcinoma in situ of unspecified breast
D0501Lobular carcinoma in situ of right breast
D0502Lobular carcinoma in situ of left breast
D0510Intraductal carcinoma in situ of unspecified breast
D0511Intraductal carcinoma in situ of right breast
D0512Intraductal carcinoma in situ of left breast
D0580Other specified type of carcinoma in situ of unspecified breast
D0581Other specified type of carcinoma in situ of right breast
D0582Other specified type of carcinoma in situ of left breast
D0590Unspecified type of carcinoma in situ of unspecified breast
D0591Unspecified type of carcinoma in situ of right breast
D0592Unspecified type of carcinoma in situ of left breast
D4860Neoplasm of uncertain behavior of unspecified breast
D4861Neoplasm of uncertain behavior of right breast
D4862Neoplasm of uncertain behavior of left breast

NON-MALIGNANT BREAST DISORDERS

PRINCIPAL DIAGNOSIS

D493Neoplasm of unspecified behavior of breast
I972Postmastectomy lymphedema syndrome
N6001Solitary cyst of right breast
N6002Solitary cyst of left breast
N6009Solitary cyst of unspecified breast
N6011Diffuse cystic mastopathy of right breast
N6012Diffuse cystic mastopathy of left breast
N6019Diffuse cystic mastopathy of unspecified breast
N6021Fibroadenosis of right breast
N6022Fibroadenosis of left breast
N6029Fibroadenosis of unspecified breast
N6031Fibrosclerosis of right breast
N6032Fibrosclerosis of left breast
N6039Fibrosclerosis of unspecified breast
N6041Mammary duct ectasia of right breast
N6042Mammary duct ectasia of left breast
N6049Mammary duct ectasia of unspecified breast
N6081Other benign mammary dysplasias of right breast
N6082Other benign mammary dysplasias of left breast
N6089Other benign mammary dysplasias of unspecified breast
N6091Unspecified benign mammary dysplasia of right breast
N6092Unspecified benign mammary dysplasia of left breast
N6099Unspecified benign mammary dysplasia of unspecified breast
N610Mastitis without abscess
N611Abscess of the breast and nipple
N62Hypertrophy of breast
N63Unspecified lump in breast
N640Fissure and fistula of nipple
N641Fat necrosis of breast
N642Atrophy of breast
N643Galactorrhea not associated with childbirth
N644Mastodynia
N6451Induration of breast
N6452Nipple discharge
N6453Retraction of nipple
N6459Other signs and symptoms in breast
N6481Ptosis of breast
N6482Hypoplasia of breast
N6489Other specified disorders of breast
N649Disorder of breast, unspecified
N650Deformity of reconstructed breast
N651Disproportion of reconstructed breast
Q830Congenital absence of breast with absent nipple
Q831Accessory breast
Q832Absent nipple
Q833Accessory nipple
Q838Other congenital malformations of breast
Q839Congenital malformation of breast, unspecified
R920Mammographic microcalcification found on diagnostic imaging of breast
R921Mammographic calcification found on diagnostic imaging of breast
R922Inconclusive mammogram
R928Other abnormal and inconclusive findings on diagnostic imaging of breast
T8541XABreakdown (mechanical) of breast prosthesis and implant, initial encounter
T8542XADisplacement of breast prosthesis and implant, initial encounter
T8543XALeakage of breast prosthesis and implant, initial encounter
T8544XACapsular contracture of breast implant, initial encounter
T8549XAOther mechanical complication of breast prosthesis and implant, initial encounter
Z4001Encounter for prophylactic removal of breast



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