2027 ICD-10-CM Diagnosis Code D04.71Carcinoma in situ of skin of right lower limb, including hip

ICD-10-CM Codes›C00–D49›D00-D09›D04

ICD-10-CM D04.71
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

D04.71 is a billable ICD-10-CM diagnosis code for carcinoma in situ of skin of right lower limb, including hip. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 606 through 607. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Skin cancers - all other types.

Code Identity

ICD-10-CM Code
D04.71
Billable Status
Yes — Valid for Submission
Code Describes
Carcinoma in situ of skin of right lower limb, including hip
Short Description
Carcinoma in situ of skin of right lower limb, including hip
Same as the full description in the CMS dataset.
Parent Code
Carcinoma in situ of skin of lower limb, including hip

Code Classification

ChapterC00–D49Neoplasms
SectionD00-D09In situ neoplasms
CategoryD04Carcinoma in situ of skin
This CodeD04.71Carcinoma in situ of skin of right lower limb, including hip

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Bilateral mass of skin of feet
  • Bilateral squamous cell carcinoma in situ of skin of lower limbs
  • Carcinoma in situ of skin of foot
  • Carcinoma in situ of skin of left lower limb
  • Carcinoma in situ of skin of right lower limb
  • Squamous cell carcinoma in situ of skin of bilateral feet
  • Squamous cell carcinoma in situ of skin of foot
  • Squamous cell carcinoma in situ of skin of left foot
  • Squamous cell carcinoma in situ of skin of left lower limb
  • Squamous cell carcinoma in situ of skin of lower limb
  • Squamous cell carcinoma in situ of skin of right foot
  • Squamous cell carcinoma in situ of skin of right lower limb

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to D04.71: its own notes plus those printed at D04, block D00-D09, and Chapter 2. A note printed at a category, block or chapter applies to every code under it.

Includes

Further defines, or gives examples of, the content of the category.

From Block D00-D09 In situ neoplasms applies to 106 codes
  • Bowen's disease
  • erythroplasia
  • grade III intraepithelial neoplasia
  • Queyrat's erythroplasia

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

From D04 Carcinoma in situ of skin applies to 21 codes
  • erythroplasia of Queyrat (penis) NOS (D07.4)
  • melanoma in situ (D03.-)

Notes

General instructions on how these codes are used.

From Chapter 2 (C00-D49) Neoplasms applies to 1,730 codes
  • Functional activity
  • All neoplasms are classified in this chapter, whether they are functionally active or not. An additional code from Chapter 4 may be used, to identify functional activity associated with any neoplasm.
  • Morphology [Histology]
  • Chapter 2 classifies neoplasms primarily by site (topography), with broad groupings for behavior, malignant, in situ, benign, etc. The Table of Neoplasms should be used to identify the correct topography code. In a few cases, such as for malignant melanoma and certain neuroendocrine tumors, the morphology (histologic type) is included in the category and codes.
  • Primary malignant neoplasms overlapping site boundaries
  • A primary malignant neoplasm that overlaps two or more contiguous (next to each other) sites should be classified to the subcategory/code .8 ('overlapping lesion'), unless the combination is specifically indexed elsewhere. For multiple neoplasms of the same site that are not contiguous, such as tumors in different quadrants of the same breast, codes for each site should be assigned.
  • Malignant neoplasm of ectopic tissue
  • Malignant neoplasms of ectopic tissue are to be coded to the site mentioned, e.g., ectopic pancreatic malignant neoplasms are coded to pancreas, unspecified (C25.9).

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name D04.71, its category, or a range that includes it.

Applicable To 1

These notes mention D04.71.

  • Z86.007 Personal history of in-situ neoplasm of skin
    Conditions classifiable to D04 names D04, which includes this code

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR NEO028
Skin cancers - all other types
Default principal diagnosis: inpatient Yes · outpatient Yes

Table of NeoplasmsClinical

Anatomical sites in the Table of Neoplasms that reference this code family.

SiteMalig.
Primary
Malig.
Secondary
Ca
in situ
BenignUncertainUnspec.
ankle NECC76.5C79.89D04.7D36.7D48.7D49.89
calfC76.5C79.89D04.7D36.7D48.7D49.89
extremity › lowerC76.5C79.89D04.7D36.7D48.7D49.89
foot NECC76.5C79.89D04.7D36.7D48.7D49.89
heel NECC76.5C79.89D04.7D36.7D48.7D49.89
hip NECC76.5C79.89D04.7D36.7D48.7D49.89
knee NECC76.5C79.89D04.7D36.7D48.7D49.89
leg NECC76.5C79.89D04.7D36.7D48.7D49.89
limb › lowerC76.5C79.89D04.7D36.7D48.7D49.89
nail [See Also: Neoplasm, skin, limb] › toe [See Also: Neoplasm, skin, limb, lower]C44.70C79.2D04.7D23.7D48.5D49.2
popliteal fossa or spaceC76.5C79.89D04.7D36.7D48.7D49.89
skin NOS › ankle [See Also: Neoplasm, skin, limb, lower]C44.70C79.2D04.7D23.7D48.5D49.2
skin NOS › calf [See Also: Neoplasm, skin, limb, lower]C44.70C79.2D04.7D23.7D48.5D49.2
skin NOS › foot [See Also: Neoplasm, skin, limb, lower]C44.70C79.2D04.7D23.7D48.5D49.2
skin NOS › heel [See Also: Neoplasm, skin, limb, lower]C44.70C79.2D04.7D23.7D48.5D49.2
skin NOS › hip [See Also: Neoplasm, skin, limb, lower]C44.70C79.2D04.7D23.7D48.5D49.2
skin NOS › knee [See Also: Neoplasm, skin, limb, lower]C44.70C79.2D04.7D23.7D48.5D49.2
skin NOS › leg [See Also: Neoplasm, skin, limb, lower]C44.70C79.2D04.7D23.7D48.5D49.2
skin NOS › limb NEC › lowerC44.70C79.2D04.7D23.7D48.5D49.2
skin NOS › plantar [See Also: Neoplasm, skin, limb, lower]C44.70C79.2D04.7D23.7D48.5D49.2
skin NOS › popliteal fossa or space [See Also: Neoplasm, skin, limb, lower]C44.70C79.2D04.7D23.7D48.5D49.2
skin NOS › sole (foot) [See Also: Neoplasm, skin, limb, lower]C44.70C79.2D04.7D23.7D48.5D49.2
skin NOS › thigh [See Also: Neoplasm, skin, limb, lower]C44.70C79.2D04.7D23.7D48.5D49.2
skin NOS › toe [See Also: Neoplasm, skin, limb, lower]C44.70C79.2D04.7D23.7D48.5D49.2
thigh NECC76.5C79.89D04.7D36.7D48.7D49.89
toe NECC76.5C79.89D04.7D36.7D48.7D49.89

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 D04.71 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
232.7 Ca in situ skin leg
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About D04.71Overview

What is the ICD-10 code for carcinoma in situ of skin of right lower limb, including hip?

The ICD-10-CM code for carcinoma in situ of skin of right lower limb, including hip is D04.71 (sometimes written as D0471). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is D04.71 (Carcinoma in situ of skin of lower limb, including hip) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report carcinoma in situ of skin of right lower limb, including hip on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does D04.71 group to?

When carcinoma in situ of skin of right lower limb, including hip is the principal diagnosis on an inpatient stay, it groups to MS-DRG 607, 606, with relative weights from 0.8772 to 1.5721 depending on complications. Higher weights mean higher Medicare reimbursement.

Can D04.71 be reported with D07.4?

Not as a rule. The Excludes1 note at D04, which applies to D04.71, lists "erythroplasia of Queyrat (penis) NOS (D07.4)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).

What is the ICD-9 equivalent of D04.71?

Under the General Equivalence Mappings, carcinoma in situ of skin of right lower limb, including hip converts to ICD-9-CM 232.7 (ca in situ skin leg). The mapping is approximate, so confirm the match fits the documentation.