2026 ICD-10-CM Diagnosis Code R61Generalized hyperhidrosis
ICD-10-CM Codes›R00–R99›R50-R69›R61
- Billable — Valid for Submission
- Not Chronic
R61 is a billable ICD-10-CM diagnosis code for generalized hyperhidrosis. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 606 through 607. As a symptom code, it should not be used as a principal diagnosis once a related definitive diagnosis has been established. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other general signs and symptoms.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Abnormal flushing and sweating
- Asymmetric sweating
- Asymmetrical hyperhidrosis
- Clammy sweat
- Cold sweat
- Compensatory hyperhidrosis
- Congenital hypoplasia of nail unit
- Congenital insensitivity to pain, hyperhidrosis, absence of cutaneous sensory innervation
- Disorder of skin co-occurrent with human immunodeficiency virus infection
- Drug-induced hyperhidrosis
- Ectodermal dysplasia, hyperhidrosis, cutaneous syndactyly syndrome
- Excessive sweating
- Generalized hyperhidrosis
- Generalized hyperhidrosis due to neurological disorder
- Gustatory hyperhidrosis
- Hot sweats
- Hyperhidrosis
- Hyperhidrosis due to autonomic dysregulation
- Hyperhidrosis due to causalgia
- Hyperhidrosis with AIDS
- Idiopathic diffuse hyperhidrosis
- Menopausal hyperhidrosis
- Myokymia, hyperhidrosis, impaired muscle relaxation syndrome
- Night sweats
- Skin disorder with AIDS
- Sweating
- Sweating attack
- Sweating fever
- Sweating on left side of body
- Sweating on right side of body
- Sweating problem
- Sweating symptom
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Inclusion Terms
- Excessive sweating
- Night sweats
- Secondary hyperhidrosis
Code First
- , if applicable, menopausal and female climacteric states N95.1
Type 1 Excludes
- focal primary secondary hyperhidrosis L74.5
- Frey's syndrome L74.52
- localized primary secondary hyperhidrosis L74.5
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists, there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation.
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
- Diaphoresis (excessive) - R61
- Hyperhidrosis, hyperidrosis - R61
- generalized - R61
- secondary - R61
- night - R61
- Sweating, excessive - R61
External Cause of Injuries IndexGuidance
References for this code in the External Cause of Injuries Index.
- Diaphoresis(excessive)
- Excess, excessive, excessively
- secretion
- sweat
- Excess, excessive, excessively
- sweating
- Hyperhidrosis, hyperidrosis
- Hyperhidrosis, hyperidrosis
- generalized
- Hyperhidrosis, hyperidrosis
- secondary
- Night
- sweats
- Sweat, sweats
- night
- Sweating, excessive
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Hyperhidrosis
excessive sweating. in the localized type, the most frequent sites are the palms, soles, axillae, inguinal folds, and the perineal area. its chief cause is thought to be emotional. generalized hyperhidrosis may be induced by a hot, humid environment, by fever, or by vigorous exercise.Sweating, Gustatory
an autonomic disorder characterized by excessive sweating of the forehead, upper lip, perioral region, or sternum subsequent to gustatory stimuli. the auriculotemporal syndrome features facial flushing or sweating limited to the distribution of the auriculotemporal nerve and may develop after trauma to the parotid gland, in association with parotid neoplasms, or following their surgical removal. (from ann neurol 1997 dec;42(6):973-5)Sweating
the process of exocrine secretion of the sweat glands, including the aqueous sweat from the eccrine glands and the complex viscous fluids of the apocrine glands.Sweating Sickness
a clinical condition characterized by fever and profuse sweating and associated with high mortality. it occurred in epidemic form five times in the fifteenth and sixteenth centuries in england, first in 1485 and last in 1551, specially during the summer and early autumn, attacking the relatively affluent adult male population. the etiology was unknown.Parotid Neoplasms
tumors or cancer of the parotid gland.Sweating Fever
a febrile response accompanied by diaphoresis.
Patient EducationClinical
Sweat
Sweat is a clear, salty liquid produced by glands in your skin. Sweating is how your body cools itself. You sweat mainly under your arms and on your feet and palms. When sweat mixes with bacteria on your skin, it can cause a smell. Bathing regularly and using antiperspirants or deodorants can help control the odor.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert R61 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About R61Overview
Is R61 (Generalized hyperhidrosis) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report generalized hyperhidrosis on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does R61 group to?
When generalized hyperhidrosis is the principal diagnosis on an inpatient stay, it groups to MS-DRG 606, 607, with relative weights from 0.9064 to 1.5132 depending on complications. Higher weights mean higher Medicare reimbursement.
Can R61 be a principal diagnosis?
Use it with care. This is a symptom code, so once a definitive diagnosis explaining the generalized hyperhidrosis is established, that condition takes the principal position instead.
What is the ICD-9 equivalent of R61?
Under the General Equivalence Mappings, generalized hyperhidrosis converts to ICD-9-CM 780.8 (generalizd hyperhidrosis). The mapping is a direct match.
Footnotes
[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.
