2026 ICD-10-CM Diagnosis Code C79.2Secondary malignant neoplasm of skin
ICD-10-CM Codes›C00–D49›C76-C80›C79
- Billable — Valid for Submission
- Chronic Condition
ICD-10-CM C79.2
C79.2 is a billable ICD-10-CM diagnosis code for secondary malignant neoplasm of skin. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 582 through 583, 597 through 599. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Secondary malignancies.
Code Identity
ICD-10-CM Code
C79.2
Billable Status
Yes — Valid for Submission
Code Describes
Secondary malignant neoplasm of skin
Short Description
Secondary malignant neoplasm of skin
Same as the full description in the CMS dataset.
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Acantholytic squamous cell carcinoma of skin
- Amelanotic malignant melanoma of skin
- Basosquamous carcinoma of skin
- Clear cell squamous cell carcinoma of skin
- Leukemic infiltration of skin
- Malignant infiltration of skin by underlying tumor
- Malignant melanoma of unknown origin
- Malignant neoplasm of bone, connective tissue, skin and breast
- Malignant neoplasm of scalp
- Malignant neoplasm of skin of abdominal wall
- Malignant neoplasm of skin of cheek, external
- Malignant neoplasm of skin of external auditory meatus
- Malignant neoplasm of skin of forearm
- Malignant neoplasm of skin of lower leg
- Malignant neoplasm of skin of popliteal fossa area
- Malignant neoplasm of skin of temple
- Malignant neoplasm of skin of upper arm
- Malignant neoplasm of soft tissue of axilla
- Malignant neoplasm of soft tissue of buttock
- Malignant neoplasm of soft tissue of toe
- Malignant neoplasm of soft tissue of wrist
- Malignant neoplasm of tarsus of eyelid
- Malignant neoplasm of unknown origin
- Metastatic acantholytic squamous cell carcinoma
- Metastatic acantholytic squamous cell carcinoma to skin
- Metastatic adenocarcinoma to Moll's gland
- Metastatic adenocarcinoma to skin
- Metastatic amelanotic malignant melanoma to skin
- Metastatic basal cell carcinoma
- Metastatic basosquamous cell carcinoma to skin
- Metastatic carcinoma to bone, connective tissue, skin and breast
- Metastatic carcinoma to breast
- Metastatic carcinoma to meibomian gland
- Metastatic carcinoma to skin
- Metastatic carcinoma to skin of head
- Metastatic carcinoma to skin of lower limb
- Metastatic carcinoma to skin of neck
- Metastatic carcinoma to skin of trunk
- Metastatic carcinoma to skin of upper limb
- Metastatic ceruminous adenocarcinoma to skin
- Metastatic clear cell squamous cell carcinoma to skin
- Metastatic malignant melanoma to skin
- Metastatic malignant neoplasm to adnexa of skin
- Metastatic malignant neoplasm to axilla
- Metastatic malignant neoplasm to cheek
- Metastatic malignant neoplasm to conjunctiva
- Metastatic malignant neoplasm to forearm
- Metastatic malignant neoplasm to hand
- Metastatic malignant neoplasm to inguinal region
- Metastatic malignant neoplasm to lower leg
- Metastatic malignant neoplasm to nose
- Metastatic malignant neoplasm to perianal skin
- Metastatic malignant neoplasm to sebaceous gland
- Metastatic malignant neoplasm to skin
- Metastatic malignant neoplasm to skin of abdomen
- Metastatic malignant neoplasm to skin of ankle
- Metastatic malignant neoplasm to skin of axilla
- Metastatic malignant neoplasm to skin of back
- Metastatic malignant neoplasm to skin of breast
- Metastatic malignant neoplasm to skin of buttock
- Metastatic malignant neoplasm to skin of cheek
- Metastatic malignant neoplasm to skin of chest
- Metastatic malignant neoplasm to skin of chin
- Metastatic malignant neoplasm to skin of ear
- Metastatic malignant neoplasm to skin of elbow
- Metastatic malignant neoplasm to skin of external auditory canal
- Metastatic malignant neoplasm to skin of eyebrow
- Metastatic malignant neoplasm to skin of eyelid
- Metastatic malignant neoplasm to skin of face
- Metastatic malignant neoplasm to skin of finger
- Metastatic malignant neoplasm to skin of foot
- Metastatic malignant neoplasm to skin of forearm
- Metastatic malignant neoplasm to skin of forehead
- Metastatic malignant neoplasm to skin of groin
- Metastatic malignant neoplasm to skin of hand
- Metastatic malignant neoplasm to skin of head
- Metastatic malignant neoplasm to skin of hip
- Metastatic malignant neoplasm to skin of hip and skin of lower leg
- Metastatic malignant neoplasm to skin of knee
- Metastatic malignant neoplasm to skin of lip
- Metastatic malignant neoplasm to skin of lower leg
- Metastatic malignant neoplasm to skin of lower limb
- Metastatic malignant neoplasm to skin of neck
- Metastatic malignant neoplasm to skin of nose
- Metastatic malignant neoplasm to skin of perineum
- Metastatic malignant neoplasm to skin of popliteal area
- Metastatic malignant neoplasm to skin of scalp
- Metastatic malignant neoplasm to skin of shoulder
- Metastatic malignant neoplasm to skin of temporal region
- Metastatic malignant neoplasm to skin of thigh
- Metastatic malignant neoplasm to skin of toe
- Metastatic malignant neoplasm to skin of trunk
- Metastatic malignant neoplasm to skin of umbilicus
- Metastatic malignant neoplasm to skin of upper arm
- Metastatic malignant neoplasm to skin of upper limb
- Metastatic malignant neoplasm to skin of wrist
- Metastatic malignant neoplasm to soft tissue of back
- Metastatic malignant neoplasm to soft tissues of axilla
- Metastatic malignant neoplasm to soft tissues of buttock
- Metastatic malignant neoplasm to soft tissues of hip
- Metastatic malignant neoplasm to soft tissues of neck
- Metastatic malignant neoplasm to soft tissues of pelvis
- Metastatic malignant neoplasm to soft tissues of perineum
- Metastatic malignant neoplasm to soft tissues of shoulder
- Metastatic malignant neoplasm to sweat gland
- Metastatic malignant neoplasm to thigh
- Metastatic malignant neoplasm to upper arm
- Metastatic Merkel cell carcinoma to skin
- Metastatic mucoepidermoid carcinoma to skin
- Metastatic plantar verrucous carcinoma
- Metastatic small cell neuroendocrine carcinoma
- Metastatic squamous cell carcinoma to skin
- Mucoepidermoid carcinoma of skin
- Neoplasm of skin of ankle
- Neoplasm of skin of axilla
- Neoplasm of skin of buttock
- Neoplasm of skin of chin
- Neoplasm of skin of elbow
- Neoplasm of skin of eyebrow
- Neoplasm of skin of finger
- Neoplasm of skin of forearm
- Neoplasm of skin of groin
- Neoplasm of skin of lower leg
- Neoplasm of skin of popliteal area
- Neoplasm of skin of thigh
- Neoplasm of skin of toe
- Neoplasm of skin of umbilicus
- Neoplasm of skin of upper arm
- Neoplasm of skin of wrist
- Plantar verrucous carcinoma
- Sarcomatous metastasis in skin
- Small cell carcinoma metastatic to skin
- Squamous cell carcinoma of foot
- T-cell leukemic infiltration of skin
- Tumor invades dermis
- Tumor invades skin
- Tumor invasion limited to skin
- Tumor of unknown origin
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Type 1 Excludes
- secondary Merkel cell carcinoma C7B.1
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
CCSR NEO070
Secondary malignancies
Default principal diagnosis: inpatient Yes · outpatient Yes
Clinical InformationClinical
Metastatic Basal Cell Carcinoma
a carcinoma that arises from the basal cells and has metastasized to another anatomic site.
Table of NeoplasmsClinical
Anatomical sites in the Table of Neoplasms that reference this code family.
| Site | Malig. Primary | Malig. Secondary | Ca in situ | Benign | Uncertain | Unspec. |
|---|---|---|---|---|---|---|
| abdomen, abdominal › wall [See Also: Neoplasm, abdomen, wall, skin] | C44.509 | C79.2 | D04.5 | D23.5 | D48.5 | D49.2 |
| ala nasi (external) [See Also: Neoplasm, skin, nose] | C44.301 | C79.2 | D04.39 | D23.39 | D48.5 | D49.2 |
| anus, anal › margin [See Also: Neoplasm, anus, skin] | C44.500 | C79.2 | D04.5 | D23.5 | D48.5 | D49.2 |
| anus, anal › skin | C44.500 | C79.2 | D04.5 | D23.5 | D48.5 | D49.2 |
| auditory | C44.20 | C79.2 | D04.2 | D23.2 | D48.5 | D49.2 |
| auditory › canal (external) (skin) | C44.20 | C79.2 | D04.2 | D23.2 | D48.5 | D49.2 |
| auricle, ear [See Also: Neoplasm, skin, ear] | C44.20 | C79.2 | D04.2 | D23.2 | D48.5 | D49.2 |
| auricular canal (external) [See Also: Neoplasm, skin, ear] | C44.20 | C79.2 | D04.2 | D23.2 | D48.5 | D49.2 |
| axilla, axillary › fold [See Also: Neoplasm, skin, trunk] | C44.509 | C79.2 | D04.5 | D23.5 | D48.5 | D49.2 |
| breast (connective tissue) (glandular tissue) (soft parts) › mastectomy site (skin) [See Also: Neoplasm, breast, skin] | C44.501 | C79.2 | – | – | – | – |
| breast (connective tissue) (glandular tissue) (soft parts) › skin | C44.501 | C79.2 | D04.5 | D23.5 | D48.5 | D49.2 |
| brow | C44.309 | C79.2 | D04.39 | D23.39 | D48.5 | D49.2 |
| canal › auditory (external) [See Also: Neoplasm, skin, ear] | C44.20 | C79.2 | D04.2 | D23.2 | D48.5 | D49.2 |
| canal › auricular (external) [See Also: Neoplasm, skin, ear] | C44.20 | C79.2 | D04.2 | D23.2 | D48.5 | D49.2 |
| canthus (eye) (inner) (outer) | C44.10 | C79.2 | D04.1 | D23.1 | D48.5 | D49.2 |
| cheek › external | C44.309 | C79.2 | D04.39 | D23.39 | D48.5 | D49.2 |
| chin | C44.309 | C79.2 | D04.39 | D23.39 | D48.5 | D49.2 |
| columnella [See Also: Neoplasm, skin, face] | C44.390 | C79.2 | D04.39 | D23.39 | D48.5 | D49.2 |
| concha [See Also: Neoplasm, skin, ear] | C44.20 | C79.2 | D04.2 | D23.2 | D48.5 | D49.2 |
| connective tissue NEC › skin (dermis) NEC [See Also: Neoplasm, skin, by site] | C44.90 | C79.2 | D04.9 | D23.9 | D48.5 | D49.2 |
| ear (external) [See Also: Neoplasm, skin, ear] | C44.20 | C79.2 | D04.2 | D23.2 | D48.5 | D49.2 |
| ear (external) [See Also: Neoplasm, skin, ear] › auricle or auris [See Also: Neoplasm, skin, ear] | C44.20 | C79.2 | D04.2 | D23.2 | D48.5 | D49.2 |
| ear (external) [See Also: Neoplasm, skin, ear] › canal, external [See Also: Neoplasm, skin, ear] | C44.20 | C79.2 | D04.2 | D23.2 | D48.5 | D49.2 |
| ear (external) [See Also: Neoplasm, skin, ear] › external meatus [See Also: Neoplasm, skin, ear] | C44.20 | C79.2 | D04.2 | D23.2 | D48.5 | D49.2 |
| ear (external) [See Also: Neoplasm, skin, ear] › lobule [See Also: Neoplasm, skin, ear] | C44.20 | C79.2 | D04.2 | D23.2 | D48.5 | D49.2 |
| ear (external) [See Also: Neoplasm, skin, ear] › skin | C44.20 | C79.2 | D04.2 | D23.2 | D48.5 | D49.2 |
| earlobe | C44.20 | C79.2 | D04.2 | D23.2 | D48.5 | D49.2 |
| external | C44.20 | C79.2 | D04.2 | D23.2 | D48.5 | D49.2 |
| external › meatus (ear) [See Also: Neoplasm, skin, ear] | C44.20 | C79.2 | D04.2 | D23.2 | D48.5 | D49.2 |
| eyebrow | C44.309 | C79.2 | D04.39 | D23.39 | D48.5 | D49.2 |
| forehead (skin) | C44.309 | C79.2 | D04.39 | D23.39 | D48.5 | D49.2 |
| helix [See Also: Neoplasm, skin, ear] | C44.20 | C79.2 | D04.2 | D23.2 | D48.5 | D49.2 |
| jaw › skin [See Also: Neoplasm, skin, face] | C44.309 | C79.2 | D04.39 | D23.39 | D48.5 | D49.2 |
| lid (lower) (upper) | C44.10 | C79.2 | D04.1 | D23.1 | D48.5 | D49.2 |
| lip › skin (commissure) (lower) (upper) | C44.00 | C79.2 | D04.0 | D23.0 | D48.5 | D49.2 |
| mastectomy site (skin) [See Also: Neoplasm, breast, skin] | C44.501 | C79.2 | – | – | – | – |
| meatus external (ear) [See Also: Neoplasm, skin, ear] | C44.20 | C79.2 | D04.2 | D23.2 | D48.5 | D49.2 |
| meibomian gland | C44.10 | C79.2 | D04.1 | D23.1 | D48.5 | D49.2 |
| nail [See Also: Neoplasm, skin, limb] | C44.90 | C79.2 | D04.9 | D23.9 | D48.5 | D49.2 |
| nail [See Also: Neoplasm, skin, limb] › finger [See Also: Neoplasm, skin, limb, upper] | C44.60 | C79.2 | D04.6 | D23.6 | D48.5 | D49.2 |
| nail [See Also: Neoplasm, skin, limb] › toe [See Also: Neoplasm, skin, limb, lower] | C44.70 | C79.2 | D04.7 | D23.7 | D48.5 | D49.2 |
| nasolabial groove [See Also: Neoplasm, skin, face] | C44.309 | C79.2 | D04.39 | D23.39 | D48.5 | D49.2 |
| nates [See Also: Neoplasm, skin, trunk] | C44.509 | C79.2 | D04.5 | D23.5 | D48.5 | D49.2 |
| nose, nasal › ala (external) (nasi) [See Also: Neoplasm, nose, skin] | C44.301 | C79.2 | D04.39 | D23.39 | D48.5 | D49.2 |
| nose, nasal › external (skin) [See Also: Neoplasm, nose, skin] | C44.301 | C79.2 | D04.39 | D23.39 | D48.5 | D49.2 |
| nose, nasal › skin | C44.301 | C79.2 | D04.39 | D23.39 | D48.5 | D49.2 |
| palpebra | C44.10 | C79.2 | D04.1 | D23.1 | D48.5 | D49.2 |
| perianal (skin) [See Also: Neoplasm, anus, skin] | C44.500 | C79.2 | D04.5 | D23.5 | D48.5 | D49.2 |
| pinna (ear) NEC [See Also: Neoplasm, skin, ear] | C44.20 | C79.2 | D04.2 | D23.2 | D48.5 | D49.2 |
| scalp | C44.40 | C79.2 | D04.4 | D23.4 | D48.5 | D49.2 |
| scar NEC [See Also: Neoplasm, skin, by site] | C44.90 | C79.2 | D04.9 | D23.9 | D48.5 | D49.2 |
| skin NOS | C44.90 | C79.2 | D04.9 | D23.9 | D48.5 | D49.2 |
| skin NOS › abdominal wall | C44.509 | C79.2 | D04.5 | D23.5 | D48.5 | D49.2 |
| skin NOS › ala nasi [See Also: Neoplasm, nose, skin] | C44.301 | C79.2 | D04.39 | D23.39 | D48.5 | D49.2 |
| skin NOS › ankle [See Also: Neoplasm, skin, limb, lower] | C44.70 | C79.2 | D04.7 | D23.7 | D48.5 | D49.2 |
| skin NOS › antecubital space [See Also: Neoplasm, skin, limb, upper] | C44.60 | C79.2 | D04.6 | D23.6 | D48.5 | D49.2 |
| skin NOS › anus | C44.500 | C79.2 | D04.5 | D23.5 | D48.5 | D49.2 |
| skin NOS › arm [See Also: Neoplasm, skin, limb, upper] | C44.60 | C79.2 | D04.6 | D23.6 | D48.5 | D49.2 |
| skin NOS › auditory canal (external) [See Also: Neoplasm, skin, ear] | C44.20 | C79.2 | D04.2 | D23.2 | D48.5 | D49.2 |
| skin NOS › auricle (ear) [See Also: Neoplasm, skin, ear] | C44.20 | C79.2 | D04.2 | D23.2 | D48.5 | D49.2 |
| skin NOS › auricular canal (external) [See Also: Neoplasm, skin, ear] | C44.20 | C79.2 | D04.2 | D23.2 | D48.5 | D49.2 |
| skin NOS › axilla, axillary fold [See Also: Neoplasm, skin, trunk] | C44.509 | C79.2 | D04.5 | D23.5 | D48.5 | D49.2 |
| skin NOS › back [See Also: Neoplasm, skin, trunk] | C44.509 | C79.2 | D04.5 | D23.5 | D48.5 | D49.2 |
| skin NOS › breast | C44.501 | C79.2 | D04.5 | D23.5 | D48.5 | D49.2 |
| skin NOS › brow [See Also: Neoplasm, skin, face] | C44.309 | C79.2 | D04.39 | D23.39 | D48.5 | D49.2 |
| skin NOS › buttock [See Also: Neoplasm, skin, trunk] | C44.509 | C79.2 | D04.5 | D23.5 | D48.5 | D49.2 |
| skin NOS › calf [See Also: Neoplasm, skin, limb, lower] | C44.70 | C79.2 | D04.7 | D23.7 | D48.5 | D49.2 |
| skin NOS › canthus (eye) (inner) (outer) | C44.10 | C79.2 | D04.1 | D23.1 | D48.5 | D49.2 |
| skin NOS › cervical region [See Also: Neoplasm, skin, neck] | C44.40 | C79.2 | D04.4 | D23.4 | D48.5 | D49.2 |
| skin NOS › cheek (external) [See Also: Neoplasm, skin, face] | C44.309 | C79.2 | D04.39 | D23.39 | D48.5 | D49.2 |
| skin NOS › chest (wall) [See Also: Neoplasm, skin, trunk] | C44.509 | C79.2 | D04.5 | D23.5 | D48.5 | D49.2 |
| skin NOS › chin [See Also: Neoplasm, skin, face] | C44.309 | C79.2 | D04.39 | D23.39 | D48.5 | D49.2 |
| skin NOS › clavicular area [See Also: Neoplasm, skin, trunk] | C44.509 | C79.2 | D04.5 | D23.5 | D48.5 | D49.2 |
| skin NOS › columnella [See Also: Neoplasm, skin, face] | C44.309 | C79.2 | D04.39 | D23.39 | D48.5 | D49.2 |
| skin NOS › concha [See Also: Neoplasm, skin, ear] | C44.20 | C79.2 | D04.2 | D23.2 | D48.5 | D49.2 |
| skin NOS › ear (external) | C44.20 | C79.2 | D04.2 | D23.2 | D48.5 | D49.2 |
| skin NOS › elbow [See Also: Neoplasm, skin, limb, upper] | C44.60 | C79.2 | D04.6 | D23.6 | D48.5 | D49.2 |
| skin NOS › eyebrow [See Also: Neoplasm, skin, face] | C44.309 | C79.2 | D04.39 | D23.39 | D48.5 | D49.2 |
| skin NOS › eyelid | C44.10 | C79.2 | D04.1 | D23.1 | D48.5 | D49.2 |
| skin NOS › face NOS | C44.300 | C79.2 | D04.30 | D23.30 | D48.5 | D49.2 |
| skin NOS › finger [See Also: Neoplasm, skin, limb, upper] | C44.60 | C79.2 | D04.6 | D23.6 | D48.5 | D49.2 |
| skin NOS › flank [See Also: Neoplasm, skin, trunk] | C44.509 | C79.2 | D04.5 | D23.5 | D48.5 | D49.2 |
| skin NOS › foot [See Also: Neoplasm, skin, limb, lower] | C44.70 | C79.2 | D04.7 | D23.7 | D48.5 | D49.2 |
| skin NOS › forearm [See Also: Neoplasm, skin, limb, upper] | C44.60 | C79.2 | D04.6 | D23.6 | D48.5 | D49.2 |
| skin NOS › forehead [See Also: Neoplasm, skin, face] | C44.309 | C79.2 | D04.39 | D23.39 | D48.5 | D49.2 |
| skin NOS › glabella [See Also: Neoplasm, skin, face] | C44.309 | C79.2 | D04.39 | D23.39 | D48.5 | D49.2 |
| skin NOS › gluteal region [See Also: Neoplasm, skin, trunk] | C44.509 | C79.2 | D04.5 | D23.5 | D48.5 | D49.2 |
| skin NOS › groin [See Also: Neoplasm, skin, trunk] | C44.509 | C79.2 | D04.5 | D23.5 | D48.5 | D49.2 |
| skin NOS › hand [See Also: Neoplasm, skin, limb, upper] | C44.60 | C79.2 | D04.6 | D23.6 | D48.5 | D49.2 |
| skin NOS › head NEC [See Also: Neoplasm, skin, scalp] | C44.40 | C79.2 | D04.4 | D23.4 | D48.5 | D49.2 |
| skin NOS › heel [See Also: Neoplasm, skin, limb, lower] | C44.70 | C79.2 | D04.7 | D23.7 | D48.5 | D49.2 |
| skin NOS › helix [See Also: Neoplasm, skin, ear] | C44.20 | C79.2 | D04.2 | D23.2 | D48.5 | D49.2 |
| skin NOS › hip [See Also: Neoplasm, skin, limb, lower] | C44.70 | C79.2 | D04.7 | D23.7 | D48.5 | D49.2 |
| skin NOS › infraclavicular region [See Also: Neoplasm, skin, trunk] | C44.509 | C79.2 | D04.5 | D23.5 | D48.5 | D49.2 |
| skin NOS › inguinal region [See Also: Neoplasm, skin, trunk] | C44.509 | C79.2 | D04.5 | D23.5 | D48.5 | D49.2 |
| skin NOS › jaw [See Also: Neoplasm, skin, face] | C44.309 | C79.2 | D04.39 | D23.39 | D48.5 | D49.2 |
| skin NOS › knee [See Also: Neoplasm, skin, limb, lower] | C44.70 | C79.2 | D04.7 | D23.7 | D48.5 | D49.2 |
| skin NOS › leg [See Also: Neoplasm, skin, limb, lower] | C44.70 | C79.2 | D04.7 | D23.7 | D48.5 | D49.2 |
| skin NOS › lid (lower) (upper) | C44.10 | C79.2 | D04.1 | D23.1 | D48.5 | D49.2 |
| skin NOS › limb NEC | C44.90 | C79.2 | D04.9 | D23.9 | D48.5 | D49.2 |
| skin NOS › limb NEC › lower | C44.70 | C79.2 | D04.7 | D23.7 | D48.5 | D49.2 |
| skin NOS › limb NEC › upper | C44.60 | C79.2 | D04.6 | D23.6 | D48.5 | D49.2 |
| skin NOS › lip (lower) (upper) | C44.00 | C79.2 | D04.0 | D23.0 | D48.5 | D49.2 |
| skin NOS › mastectomy site (skin) [See Also: Neoplasm, skin, breast] | C44.501 | C79.2 | – | – | – | – |
| skin NOS › meatus, acoustic (external) [See Also: Neoplasm, skin, ear] | C44.20 | C79.2 | D04.2 | D23.2 | D48.5 | D49.2 |
| skin NOS › nates [See Also: Neoplasm, skin, trunk] | C44.509 | C79.2 | D04.5 | D23.5 | D48.5 | D49.2 |
| skin NOS › neck | C44.40 | C79.2 | D04.4 | D23.4 | D48.5 | D49.2 |
| skin NOS › nose (external) [See Also: Neoplasm, nose, skin] | C44.301 | C79.2 | D04.39 | D23.39 | D48.5 | D49.2 |
| skin NOS › palm [See Also: Neoplasm, skin, limb, upper] | C44.60 | C79.2 | D04.6 | D23.6 | D48.5 | D49.2 |
| skin NOS › palpebra | C44.10 | C79.2 | D04.1 | D23.1 | D48.5 | D49.2 |
| skin NOS › perianal [See Also: Neoplasm, skin, anus] | C44.500 | C79.2 | D04.5 | D23.5 | D48.5 | D49.2 |
| skin NOS › perineum [See Also: Neoplasm, skin, anus] | C44.500 | C79.2 | D04.5 | D23.5 | D48.5 | D49.2 |
| skin NOS › pinna [See Also: Neoplasm, skin, ear] | C44.20 | C79.2 | D04.2 | D23.2 | D48.5 | D49.2 |
| skin NOS › plantar [See Also: Neoplasm, skin, limb, lower] | C44.70 | C79.2 | D04.7 | D23.7 | D48.5 | D49.2 |
| skin NOS › popliteal fossa or space [See Also: Neoplasm, skin, limb, lower] | C44.70 | C79.2 | D04.7 | D23.7 | D48.5 | D49.2 |
| skin NOS › pubes [See Also: Neoplasm, skin, trunk] | C44.509 | C79.2 | D04.5 | D23.5 | D48.5 | D49.2 |
| skin NOS › sacrococcygeal region [See Also: Neoplasm, skin, trunk] | C44.509 | C79.2 | D04.5 | D23.5 | D48.5 | D49.2 |
| skin NOS › scalp | C44.40 | C79.2 | D04.4 | D23.4 | D48.5 | D49.2 |
| skin NOS › scapular region [See Also: Neoplasm, skin, trunk] | C44.509 | C79.2 | D04.5 | D23.5 | D48.5 | D49.2 |
| skin NOS › shoulder [See Also: Neoplasm, skin, limb, upper] | C44.60 | C79.2 | D04.6 | D23.6 | D48.5 | D49.2 |
| skin NOS › sole (foot) [See Also: Neoplasm, skin, limb, lower] | C44.70 | C79.2 | D04.7 | D23.7 | D48.5 | D49.2 |
| skin NOS › specified sites NEC | C44.80 | C79.2 | D04.8 | D23.9 | D48.5 | D49.2 |
| skin NOS › submammary fold [See Also: Neoplasm, skin, trunk] | C44.509 | C79.2 | D04.5 | D23.5 | D48.5 | D49.2 |
| skin NOS › supraclavicular region [See Also: Neoplasm, skin, neck] | C44.40 | C79.2 | D04.4 | D23.4 | D48.5 | D49.2 |
| skin NOS › temple [See Also: Neoplasm, skin, face] | C44.309 | C79.2 | D04.39 | D23.39 | D48.5 | D49.2 |
| skin NOS › thigh [See Also: Neoplasm, skin, limb, lower] | C44.70 | C79.2 | D04.7 | D23.7 | D48.5 | D49.2 |
| skin NOS › thoracic wall [See Also: Neoplasm, skin, trunk] | C44.509 | C79.2 | D04.5 | D23.5 | D48.5 | D49.2 |
| skin NOS › thumb [See Also: Neoplasm, skin, limb, upper] | C44.60 | C79.2 | D04.6 | D23.6 | D48.5 | D49.2 |
| skin NOS › toe [See Also: Neoplasm, skin, limb, lower] | C44.70 | C79.2 | D04.7 | D23.7 | D48.5 | D49.2 |
| skin NOS › tragus [See Also: Neoplasm, skin, ear] | C44.20 | C79.2 | D04.2 | D23.2 | D48.5 | D49.2 |
| skin NOS › trunk | C44.509 | C79.2 | D04.5 | D23.5 | D48.5 | D49.2 |
| skin NOS › umbilicus [See Also: Neoplasm, skin, trunk] | C44.509 | C79.2 | D04.5 | D23.5 | D48.5 | D49.2 |
| skin NOS › wrist [See Also: Neoplasm, skin, limb, upper] | C44.60 | C79.2 | D04.6 | D23.6 | D48.5 | D49.2 |
| sudoriferous, sudoriparous gland, site unspecified | C44.90 | C79.2 | D04.9 | D23.9 | D48.5 | D49.2 |
| sweat gland (apocrine) (eccrine), site unspecified | C44.90 | C79.2 | D04.9 | D23.9 | D48.5 | D49.2 |
| temple (skin) [See Also: Neoplasm, skin, face] | C44.309 | C79.2 | D04.39 | D23.39 | D48.5 | D49.2 |
| temporal › region › skin [See Also: Neoplasm, skin, face] | C44.309 | C79.2 | D04.39 | D23.39 | D48.5 | D49.2 |
| tragus [See Also: Neoplasm, skin, ear] | C44.20 | C79.2 | D04.2 | D23.2 | D48.5 | D49.2 |
| umbilicus, umbilical [See Also: Neoplasm, skin, trunk] | C44.509 | C79.2 | D04.5 | D23.5 | D48.5 | D49.2 |
Patient EducationClinical
Skin Cancer
Skin cancer is the most common form of cancer in the United States. The two most common types are basal cell cancer and squamous cell cancer. They usually form on the head, face, neck, hands, and arms. Another type of skin cancer, melanoma, is more dangerous but less common.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert C79.2 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.
Questions About C79.2Overview
Is C79.2 (Secondary malignant neoplasm of other and unspecified sites) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report secondary malignant neoplasm of skin on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does C79.2 group to?
When secondary malignant neoplasm of skin is the principal diagnosis on an inpatient stay, it groups to MS-DRG 582, 583, 597, 598, 599, with relative weights from 0.7332 to 1.9266 depending on complications. Higher weights mean higher Medicare reimbursement.
What is the ICD-9 equivalent of C79.2?
Under the General Equivalence Mappings, secondary malignant neoplasm of skin converts to ICD-9-CM 198.2 (secondary malig neo skin). The mapping is a direct match.
Footnotes
[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:
- The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
- The condition places limitations on self-care, independent living, and social interactions.
