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ICD-10/C44.529

C44.529 ICD-10-CM Code: Squamous cell carcinoma of skin of other part of trunk

Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.

Inpatient Payment Groups (MS-DRG)

MS-DRGs this diagnosis helps define, as principal or secondary, per the CMS ICD-10-CM/PCS MS-DRG Definitions Manual v43.0 (FY2026), Appendix B.

  • MS-DRG 606 — MINOR SKIN DISORDERS WITH MCC (MDC 09)
  • MS-DRG 607 — MINOR SKIN DISORDERS WITHOUT MCC (MDC 09)

A diagnosis appearing in a group's logic does not by itself determine the DRG assigned to a stay; the grouper uses the full claim.

Code Set: Valid FY2026 and FY2027. FY2026 took effect October 1, 2025.

Official Registry Overview & Definition

Squamous cell carcinoma of skin of other part of trunk is a billable ICD-10-CM diagnosis code (C44.529).

Official Tabular Instructional Notes

Sequencing, inclusion, and exclusion notes published for C44.529 in the official ICD-10-CM tabular list.

Includes

Conditions the official ICD-10-CM tabular list includes under this code.

  • malignant neoplasm of sebaceous glands
  • malignant neoplasm of sweat glands

Excludes1 — Not Coded Here

Conditions that can never be reported with this code; the two are mutually exclusive.

  • anus NOS (C21.0)
  • scrotum (C63.2)
  • Kaposi's sarcoma of skin (C46.0)
  • malignant melanoma of skin (C43.-)
  • malignant neoplasm of skin of genital organs (C51-C52, C60.-, C63.2)
  • Merkel cell carcinoma (C4A.-)

Nearest Codes in This Family

Official ICD-10-CM classifications closest to C44.529 in its code family, with their registry titles.

  • C44.511 — Basal cell carcinoma of skin of breast
  • C44.519 — Basal cell carcinoma of skin of other part of trunk
  • C44.52 — Squamous cell carcinoma of skin of trunk
  • C44.520 — Squamous cell carcinoma of anal skin
  • C44.521 — Squamous cell carcinoma of skin of breast
  • C44.59 — Other specified malignant neoplasm of skin of trunk
  • C44.590 — Other specified malignant neoplasm of anal skin
  • C44.591 — Other specified malignant neoplasm of skin of breast
  • C44.599 — Other specified malignant neoplasm of skin of other part of trunk
  • C44.6 — Other and unspecified malignant neoplasm of skin of upper limb, including shoulder

View all codes in the C44 family

Neoplasm Table Sites (3)

Anatomical sites from the official ICD-10-CM Table of Neoplasms that map to this code, with the matching behavior column.

  • Neoplasm, neoplastic, abdomen, abdominal, wall, skin, squamous cell carcinoma — Malignant, Primary
  • Neoplasm, neoplastic, skin NOS, abdominal wall, squamous cell carcinoma — Malignant, Primary
  • Neoplasm, neoplastic, skin NOS, trunk, squamous cell carcinoma — Malignant, Primary