Diagnosis Code

C43.9 MALIGNANT MELANOMA OF SKIN, UNSPECIFIED


Code Information

Diagnosis Code: C43.9

Short Description: Malignant melanoma of skin, unspecified

Long Description: Malignant melanoma of skin, unspecified

The code C43.9 is VALID for claim submission

Code Classification:

  • Neoplasms (C00–D48)
    • Melanoma and other malignant neoplasms of skin (C43-C44)
      • Malignant melanoma of skin (C43)
        • C43.9 Malignant melanoma of skin, unspecified

Code Version: 2020 ICD-10-CM


Synonyms

  • Acral lentiginous malignant melanoma of skin
  • Amelanotic malignant melanoma of skin
  • Balloon cell malignant melanoma
  • Borderline malignant melanoma
  • Clark melanoma level 1
  • Clark melanoma level 2
  • Clark melanoma level 3
  • Clark melanoma level 4
  • Clark melanoma level 5
  • Clark melanoma level finding
  • Clark melanoma level finding
  • Clark melanoma level finding
  • Clark melanoma level finding
  • Clark melanoma level finding
  • Congenital malignant melanoma
  • Desmoplastic malignant melanoma
  • Donor derived melanoma
  • Familial malignant melanoma of skin
  • Hypermelanosis due to neoplasia
  • Hypomelanosis surrounding malignant melanoma
  • Hypomelanosis surrounding melanocytic neoplasm
  • Lentigo maligna melanoma
  • Local recurrence of malignant melanoma of skin
  • Malignant blue nevus of skin
  • Malignant melanoma
  • Malignant melanoma
  • Malignant melanoma
  • Malignant melanoma animal-type
  • Malignant melanoma arising in congenital nevus
  • Malignant melanoma arising in intradermal nevus
  • Malignant melanoma metastatic to kidney
  • Malignant melanoma metastatic to pancreas
  • Malignant melanoma of mucous membrane
  • Malignant melanoma of nail apparatus
  • Malignant melanoma of skin
  • Malignant neoplasm of nail apparatus
  • Materno-fetal metastatic malignant melanoma
  • Melanoma and neural system tumor syndrome
  • Melanoma carcinomatosis
  • Metastasis from malignant melanoma of skin
  • Metastatic malignant melanoma
  • Metastatic malignant melanoma
  • Metastatic malignant melanoma
  • Metastatic malignant melanoma
  • Metastatic malignant melanoma
  • Metastatic malignant melanoma with diffuse hypermelanosis
  • Mucosal nodular melanoma
  • Neurotropic malignant melanoma
  • Nodular malignant melanoma of skin
  • pM1a: Metastasis to skin, subcutaneous tissues, or distant lymph nodes
  • pM1b: Metastasis to lung
  • pM1c category
  • pM1c: Metastasis to visceral site other than lung or distant metastasis at any site associated with an elevated serum lactic dehydrogenase
  • pN1: Metastasis in one regional lymph node
  • pN1a category
  • pN1a: Clinically occult
  • pN1b category
  • pN1b: Clinically apparent
  • pN2: Metastasis in 2 to 3 regional nodes or intralymphatic regional metastasis without nodal metastasis
  • pN2a category
  • pN2a: Clinically occult
  • pN2b category
  • pN2b: Clinically apparent
  • pN2c category
  • pN2c: Satellite or in-transit metastasis without nodal metastasis
  • pN3: Metastasis in four or more regional nodes, or matted metastatic nodes, or in-transit metastasis or satellite
  • pT1: Melanoma 1.0 mm or less in thickness, with or without ulceration
  • pT1a: Melanoma 1.0 mm or less in thickness and level II or III, no ulceration
  • pT1b: Melanoma 1.0 mm or less in thickness and level IV or V or with ulceration
  • pT2: Melanoma 1.01 to 2.0 mm in thickness, with or without ulceration
  • pT2a: Melanoma 1.01 to 2.0 mm in thickness, no ulceration
  • pT2b: Melanoma 1.01 to 2.0 mm in thickness, with ulceration
  • pT3: Melanoma 2.01 to 4.0 mm in thickness, with or without ulceration
  • pT3a: Melanoma 2.01 to 4.0 mm in thickness, no ulceration
  • pT3b: Melanoma 2.01 to 4.0 mm in thickness, with ulceration
  • pT4: Melanoma greater than 4.0 mm in thickness, with or without ulceration
  • pT4a: Melanoma greater than 4.0 mm in thickness, no ulceration
  • pT4b: Melanoma greater than 4.0 mm in thickness, with ulceration
  • PUVA therapy-associated malignant melanoma
  • PUVA therapy-associated skin malignancy
  • Secondary malignant neoplasm of kidney
  • Secondary malignant neoplasm of pancreas
  • Spindle cell malignant melanoma
  • Superficial spreading malignant melanoma of skin
  • Surgical deep margin involved by malignant melanoma
  • Surgical deep margin involved by malignant neoplasm
  • Surgical deep margin involvement by melanoma cannot be assessed
  • Surgical deep margin uninvolved by malignant melanoma
  • Surgical lateral margin involved by malignant melanoma
  • Surgical lateral margin involvement by melanoma cannot be assessed
  • Surgical lateral margin uninvolved by malignant melanoma
  • Widespread metastatic malignant neoplastic disease

Diagnostic Related Group(s)

The code C43.9 is grouped in the following Diagnostic Related Group(s) (MS-DRG v37.0)
  • Major Skin Disorders With Mcc (595)
  • Major Skin Disorders Without Mcc (596)

References to Index of Diseases and Injuries

The code C43.9 has the following ICD-10-CM references to the Index of Diseases and Injuries
  • Inclusion Terms:
    • Malignant melanoma of unspecified site of skin
    • Melanoma (malignant) NOS

Crosswalk Information

ICD-10 Code ICD-9 Code ICD-9 Description
C43.9 Right Arrow 172.9 Malig melanoma skin NOS

This ICD-10 to ICD-9 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

ICD-10 Code ICD-10 Description
C43 Malignant melanoma of skin
C43.0 Malignant melanoma of lip
C43.1 Malignant melanoma of eyelid, including canthus
C43.10 Malignant melanoma of unspecified eyelid, including canthus
C43.11 Malignant melanoma of right eyelid, including canthus
C43.111 Malignant melanoma of right upper eyelid, including canthus
C43.112 Malignant melanoma of right lower eyelid, including canthus
C43.12 Malignant melanoma of left eyelid, including canthus
C43.121 Malignant melanoma of left upper eyelid, including canthus
C43.122 Malignant melanoma of left lower eyelid, including canthus
C43.2 Malignant melanoma of ear and external auricular canal
C43.20 Malignant melanoma of unspecified ear and external auricular canal
C43.21 Malignant melanoma of right ear and external auricular canal
C43.22 Malignant melanoma of left ear and external auricular canal
C43.3 Malignant melanoma of other and unspecified parts of face
C43.30 Malignant melanoma of unspecified part of face
C43.31 Malignant melanoma of nose
C43.39 Malignant melanoma of other parts of face
C43.4 Malignant melanoma of scalp and neck
C43.5 Malignant melanoma of trunk
C43.51 Malignant melanoma of anal skin
C43.52 Malignant melanoma of skin of breast
C43.59 Malignant melanoma of other part of trunk
C43.6 Malignant melanoma of upper limb, including shoulder
C43.60 Malignant melanoma of unspecified upper limb, including shoulder
C43.61 Malignant melanoma of right upper limb, including shoulder
C43.62 Malignant melanoma of left upper limb, including shoulder
C43.7 Malignant melanoma of lower limb, including hip
C43.70 Malignant melanoma of unspecified lower limb, including hip
C43.71 Malignant melanoma of right lower limb, including hip
C43.72 Malignant melanoma of left lower limb, including hip
C43.8 Malignant melanoma of overlapping sites of skin


This page was last updated on: 10/1/2020