2027 ICD-10-CM Diagnosis Code L67.0Trichorrhexis nodosa

ICD-10-CM Codes›L00–L99›L60-L75›L67

ICD-10-CM L67.0
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

L67.0 is a billable ICD-10-CM diagnosis code for trichorrhexis nodosa. 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 clastothrix. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified and unspecified skin disorders.

Code Identity

ICD-10-CM Code
L67.0
Billable Status
Yes — Valid for Submission
Code Describes
Trichorrhexis nodosa
Short Description
Trichorrhexis nodosa
Same as the full description in the CMS dataset.
Parent Code
L67
Hair color and hair shaft abnormalities

Code Classification

ChapterL00–L99Diseases of the skin and subcutaneous tissue
SectionL60-L75Disorders of skin appendages
CategoryL67Hair color and hair shaft abnormalities
This CodeL67.0Trichorrhexis nodosa

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Clastothrix
  • Trichorrhexis
  • Trichothiodystrophy

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to L67.0: its own notes plus those printed at L67, block L60-L75, 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.

From L67 Hair color and hair shaft abnormalities applies to 4 codes
From Block L60-L75 Disorders of skin appendages applies to 85 codes
  • congenital malformations of integument (Q84.-)

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.

From Chapter 12 (L00-L99) Diseases of the skin and subcutaneous tissue applies to 1,001 codes
  • 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.

Clinical ClassificationClinical

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

CCSR SKN007
Other specified and unspecified skin disorders
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Hair Problems

The average person has 5 million hairs. Hair grows all over your body except on your lips, palms, and the soles of your feet. It takes about a month for healthy hair to grow half an inch. Most hairs grow for up to six years and then fall out. New hairs grow in their place.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert L67.0 to ICD-9-CMHistory

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

ICD-9-CM
704.2 Abnormalities of hair
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 L67.0Overview

What is the ICD-10 code for trichorrhexis nodosa?

The ICD-10-CM code for trichorrhexis nodosa is L67.0 (sometimes written as L670). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is L67.0 (Hair color and hair shaft abnormalities) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report trichorrhexis nodosa on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does L67.0 group to?

When trichorrhexis nodosa 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 L67.0 be reported with Q84.1?

Not as a rule. The Excludes1 note at L67, which applies to L67.0, lists "monilethrix (Q84.1)". 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 L67.0?

Under the General Equivalence Mappings, trichorrhexis nodosa converts to ICD-9-CM 704.2 (abnormalities of hair). The mapping is approximate, so confirm the match fits the documentation.