2027 ICD-10-CM Diagnosis Code L94.9Localized connective tissue disorder, unspecified
ICD-10-CM Codes›L00–L99›L80-L99›L94
- Billable — Valid for Submission
- Not Chronic
L94.9 is a billable ICD-10-CM diagnosis code for localized connective tissue disorder, unspecified. 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. Coders also document this condition as disorder of connective tissue. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified and unspecified skin disorders.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Disorder of connective tissue
- Hypermelanosis due to connective tissue disorder
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to L94.9: its own notes plus those printed at L94 and Chapter 12. A note printed at a category, block or chapter applies to every code under it.
Excludes1
Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.
Excludes2
Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- lipomelanotic reticulosis (I89.8)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
- systemic connective tissue disorders (M30-M36)
- viral warts (B07.-)
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Disorder (of) See Also: Disease;
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Connective Tissue Disorders
Your connective tissue supports many different parts of your body, such as your skin, eyes, and heart. It is like a "cellular glue" that gives your body parts their shape and helps keep them strong. It also helps some of your tissues do their work. It is made of many kinds of proteins. Cartilage and fat are types of connective tissue.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert L94.9 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About L94.9Overview
What is the ICD-10 code for localized connective tissue disorder, unspecified?
The ICD-10-CM code for localized connective tissue disorder, unspecified is L94.9 (sometimes written as L949). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is L94.9 (Other localized connective tissue disorders) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report localized connective tissue disorder, unspecified on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does L94.9 group to?
When localized connective tissue disorder, unspecified 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.
What is the ICD-9 equivalent of L94.9?
Under the General Equivalence Mappings, localized connective tissue disorder, unspecified converts to ICD-9-CM 701.9 (skin hypertro/atroph NOS). The mapping is approximate, so confirm the match fits the documentation.
