ICD-10-CM 2027 diagnosis code
C47.4Malignant neoplasm of peripheral nerves of abdomen
C47.4 is a valid, billable ICD-10-CM code for malignant neoplasm of peripheral nerves of abdomen. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About C47.4
C47.4 is the ICD-10-CM diagnosis code for malignant neoplasm of peripheral nerves of abdomen. It belongs to category C47 (malignant neoplasm of peripheral nerves and autonomic nervous system), block C45-C49 (malignant neoplasms of mesothelial and soft tissue) and chapter 2 (neoplasms). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.
Within C47 (malignant neoplasm of peripheral nerves and autonomic nervous system), C47.4 is specifically for malignant neoplasm of peripheral nerves of abdomen. Related codes cover peripheral nerves of head, face and neck (C47.0), peripheral nerves of upper limb, including shoulder (C47.1), peripheral nerves of lower limb, including hip (C47.2), peripheral nerves of thorax (C47.3), peripheral nerves of pelvis (C47.5), peripheral nerves of trunk, unspecified (C47.6), overlapping sites of peripheral nerves and autonomic nervous system (C47.8) and unspecified (C47.9).
As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.
In MS-DRG v44.0, it is part of the grouping logic for DRG 542 (Pathological Fractures and Musculoskeletal and Connective Tissue Malignancy with MCC, relative weight 1.7211), DRG 543 (Pathological Fractures and Musculoskeletal and Connective Tissue Malignancy with CC, relative weight 1.006) and DRG 544 (Pathological Fractures and Musculoskeletal and Connective Tissue Malignancy without CC/MCC, relative weight 0.7406), in MDC 08 (Diseases and Disorders of the Musculoskeletal System and Connective Tissue), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
Before ICD-10, this condition was coded in ICD-9-CM as 171.5 (malignant neoplasm of connective and other soft tissue of abdomen).
Notes that apply from higher levels
Instructions written at a parent level also apply to C47.4.
› From C47 Malignant neoplasm of peripheral nerves and autonomic nervous system
- malignant neoplasm of sympathetic and parasympathetic nerves and ganglia
- Kaposi's sarcoma of soft tissue (C46.1)
Broader instructions also apply from Chapter 2: Neoplasms.
Table of Drugs & Neoplasms entries
- Neoplasm, neoplastic › nerve (ganglion) › peripheral NEC › abdomen — Malignant Primary
- Neoplasm, neoplastic › nerve (ganglion) › peripheral NEC › abdominal wall — Malignant Primary
- Neoplasm, neoplastic › nerve (ganglion) › peripheral NEC › umbilicus — Malignant Primary
MS-DRG v44.0 grouping
All DRGs →Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.
MDC 08 · Diseases and Disorders of the Musculoskeletal System and Connective Tissue
ICD-9-CM equivalent
Converter →- 171.5Malignant neoplasm of connective and other soft tissue of abdomenapproximate
From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about C47.4
Is C47.4 billable?
- Yes. C47.4 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can C47.4 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict C47.4 as a principal diagnosis.
Is C47.4 a CC or MCC?
- C47.4 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.
What DRG does C47.4 group to?
- C47.4 is used in the MS-DRG v44.0 logic for MS-DRG 542 (Pathological Fractures and Musculoskeletal and Connective Tissue Malignancy with MCC), MS-DRG 543 (Pathological Fractures and Musculoskeletal and Connective Tissue Malignancy with CC) and MS-DRG 544 (Pathological Fractures and Musculoskeletal and Connective Tissue Malignancy without CC/MCC). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.
What is the ICD-9 code for C47.4?
- The CMS General Equivalence Mappings map C47.4 to ICD-9-CM 171.5.